McGraw Hill Math Grade 5 Pretest Answer Key

All the solutions provided in McGraw Hill Math Grade 5 Answer Key PDF Pretest are as per the latest syllabus guidelines.

McGraw-Hill Math Grade 5 Pretest Answer Key

Write each number in standard form.

Question 1.
53 and 125 thousandths
__________
Answer:
53 and 0.125.

Explanation:
The standard form of 53 is 53 and 125 thousandths is 125 ×10-3 which is 0.125.

Question 2.
96 thousandths
__________
Answer:
0.096

Explanation:
The standard form of 96 thousandths is 96 ×10-3 which is 0.096.

Question 3.
2 billion, 109 million, 7
__________
Answer:
2,000,000,000, 109,000,000 and 7.

Explanation:
The standard form of 2 billion is 2 ×109 which is 2,000,000,000.
109 million is 109 ×106 which is 109,000,000 and 7 is 7.

Write each number in word form.

Question 4.
19,103,578,143
Answer:
19 – Nineteen.
103 – One hundred and three.
578 – Five hundred and seventy-eight.
143 – One hundred and forty-three.

Question 5.
200,200,200
Answer:
200 – Two hundred.

Write >, <, or = to compare each pair of numbers.

Question 6.
5.7 ___ 5.71
Answer:
5.7 < 5.71.

Explanation:
Here, 5.7 is less than 5.71.

Question 7.
0.093 ____ 0.93
Answer:
0.093 < 0.93.

Explanation:
Here, 0.093 is less than 0.93.

Question 8.
1.046 ____ 1.046
Answer:
1.046 = 1.046.

Explanation:
Here, 1.046 is equal to 1.046.

Round each number to the place of the underlined digit.

Question 9.
4.369 ___
Answer:
4.370

Explanation:
The rounding of 4.369 is 4.370.

Question 10.
1.025 ____
Answer:
1.020

Explanation:
The rounding of 1.025 is 1.020.

Question 11.
17.457 ____
Answer:
18.

Explanation:
The rounding of 17.457 is 18

Add. Write the sum.

Question 12.
McGraw Hill Math Grade 5 Pretest Answer Key 1
Answer:
1.94 + 7.59 = 9.53.

Explanation:
The addition of 1.94 and 7.59 is 9.53.
McGraw Hill Math Grade 5 Pretest Answer Key-06

Question 13.
McGraw Hill Math Grade 5 Pretest Answer Key 2
Answer:
557 + 623 = 1,180.

Explanation:
The addition of 557 + 623 is 1,180.
McGraw Hill Math Grade 5 Pretest Answer Key-05

Question 14.
McGraw Hill Math Grade 5 Pretest Answer Key 3
Answer:
702 + 99 = 801.

Explanation:
The addition of 702 + 99 is 801.
McGraw Hill Math Grade 5 Pretest Answer Key-04

Question 15.
McGraw Hill Math Grade 5 Pretest Answer Key 4
Answer:
5.38 + 0.92 = 6.3.

Explanation:
The addition of 5.38 + 0.92 is 6.3.
McGraw Hill Math Grade 5 Pretest Answer Key-03

Question 16.
53.475 + 19.332 _________
Answer:
53.475 + 19.332 = 72.807.

Explanation:
The addition of 53.475 + 19.332 is 72.807.
McGraw Hill Math Grade 5 Pretest Answer Key-02

Question 17.
12.257 + 8.153 __________
Answer:
12.257 + 8.153 = 20.41.

Explanation:
The addition of 12.257 + 8.153 is 20.41.
McGraw Hill Math Grade 5 Pretest Answer Key-01

Question 18.
71.17 + 6.76 ______
Answer:
71.17 + 6.76 = 77.93.

Explanation:
The addition of 71.17 + 6.76 is 77.93.
McGraw Hill Math Grade 5 Pretest Answer Key

Subtract. Write the difference.

Question 19.
McGraw Hill Math Grade 5 Pretest Answer Key 5
Answer:
719 – 89 = 624.

Explanation:
The subtraction of 719 – 89 is 624.
McGraw Hill Math Grade 5 Pretest Answer Key 5-1

Question 20.
McGraw Hill Math Grade 5 Pretest Answer Key 6
Answer:
8.89 – 2.98 = 5.91.

Explanation:
The subtraction of 8.89 – 2.98 is 5.91.
McGraw Hill Math Grade 5 Pretest Answer Key 6-1

Question 21.
McGraw Hill Math Grade 5 Pretest Answer Key 7
Answer:
176 – 83 = 93.

Explanation:
The subtraction of 176 – 83 is 93.
McGraw-Hill-Math-Grade-5-Pretest-Answer-Key-7-1

Question 22.
McGraw Hill Math Grade 5 Pretest Answer Key 8
Answer:
343.81 – 66.10 = 277.71.

Explanation:
The subtraction of 343.81 – 66.10 is 277.71.
McGraw-Hill-Math-Grade-5-Pretest-Answer-Key-8-1

Question 23.
15,432 – 13,718 = _______
Answer:
15,432 – 13,718 = 1.704.

Explanation:
The subtraction of 15.432 – 13.718 is 1.704.

Question 24.
150.62 – 42.37 = ________
Answer:
150.62 – 42.37 = 108.25

Explanation:
The subtraction of 150.62 – 42.37 is 108.25.

Question 25.
83.01 – 78.81 = _________
Answer:
83.01 – 78.81 = 4.2.

Explanation:
The subtraction of 83.01 – 78.81 is 4.2.

Question 26.
A potato weighs 7.72 ounces. An apple weighs 5.03 ounces. How many ounces heavier is the
potato than the apple?
Answer:

Simplify and complete. Tell what property is represented.

Question 27.
20 × 8 = (______ × 8) + (10 × ______) = 80 + ___ = ____
_______ property
Answer:
20 × 8 = (10 × 8) + (10 × 8)
= 160.

Explanation:
By distributive property 20 × 8 is
20 × 8 = (10 × 8) + (10 × 8)
= 80 + 80
= 160.

Question 28.
(30 × 4) × 5 = ______ × (4 × ______) = 30 × ______ = ______
_______________________________________ Property
Answer:
(30 × 4) × 5 = 30 × (4 × 5)
= 600.

Explanation:
By associative property (30 × 4) × 5 is
(30 × 4) × 5 = 30 × (4 × 5)
= 30 × 20
= 600.

Multiply. Write the product.

Question 29.
McGraw Hill Math Grade 5 Pretest Answer Key 9
Answer:
46 × 3 = 138.

Explanation:
The product of 46 and 3 is 138.
McGraw-Hill-Math-Grade-5-Pretest-Answer-Key-9-1

Question 30.
McGraw Hill Math Grade 5 Pretest Answer Key 10
Answer:
28 × 14 = 392.

Explanation:
The product of 28 and 14 is 392.
McGraw-Hill-Math-Grade-5-Pretest-Answer-Key-10-1

Question 31.
McGraw Hill Math Grade 5 Pretest Answer Key 11
Answer:
511 × 4 = 2,044.

Explanation:
The product of 511 and 4 is 2,044.
McGraw-Hill-Math-Grade-5-Pretest-Answer-Key-11-1

Question 32.
McGraw Hill Math Grade 5 Pretest Answer Key 12
Answer:
123 × 75 = 9,225.

Explanation:
The product of 123 and 75 is 9,225.
McGraw-Hill-Math-Grade-5-Pretest-Answer-Key-12-1

Question 33.
A bakery bakes 5-dozen loaves of bread. Each loaf sells for 2 dollars. How much money will the bakery earn if it sells every loaf of bread?
Answer:
For 60 loaves the bakery earns $120.

Explanation:
Given that a bakery bakes 5-dozen loaves of bread each loaf sells for 2 dollars. As there are 5×12 which is 60 loaves, so for 60 loaves the bakery earns 60 × 2 = $120.

Question 34.
2,811 × 102 = ___________
Answer:
2,811 × 102 = 2,81,100.

Explanation:
The product of 2,811 × 102 is
2,811 × 102 = 2,811 × 10 × 10
= 2,81,100.

Question 35.
61 × 103 = _____________
Answer:
61 × 103 = 61,000.

Explanation:
The product of 61 × 103 is
61 × 103 = 61 × 10 × 10 × 10
= 61,000.

Question 36.
77.6 × 101 = ______
Answer:
77.6 × 101 = 776.

Explanation:
The product of 77.6 × 101 is
77.6 × 101 = 77.6 × 10
= 776.

Divide. Write the quotient.

Question 37.
81 ÷ 3 = ____
Answer:
81 ÷ 3 = 27.

Explanation:
By dividing 81 ÷ 3 we will get a quotient of 27.
McGraw Hill Math Grade 5 Pretest Answer Key-07

Question 38.
14 ÷ 4 = ______
Answer:
14 ÷ 4 = 3.5

Explanation:
By dividing 14 ÷ 4 we will get a quotient of 3.5.
McGraw Hill Math Grade 5 Pretest Answer Key-08

Question 39.
78 ÷ 6 = ____
Answer:
78 ÷ 6 = 13.

Explanation:
By dividing 78 ÷ 6 we will get a quotient of 13.
McGraw Hill Math Grade 5 Pretest Answer Key-09

Estimate. Then multiply or divide.

Question 40.
Estimate: 3.1 × 4 = ____
Multiply: 3.1 × 4 = _____
Answer:
Estimate: 3.1 × 4 = 12
Multiply: 3.1 × 4 = 12.4

Explanation:
By multiplying 3.1 × 4 we will get 12.4.

Question 41.
Estimate: 7.13 × 5 = ____
Multiply: 7.13 × 5 = _____
Answer:
Estimate: 7.13 × 5 = 36
Multiply: 7.13 × 5 = 35.65

Explanation:
By multiplying 7.13 × 5 we will get 35.65

Question 42.
Estimate: 11.09 × 6 = ____
Multiply: 11.09 × 6 = _____
Answer:
Estimate: 11.09 × 6 = 67
Multiply: 11.09 × 6 = 66.54

Explanation:
By multiplying 11.09 × 6 we will get 66.54.

Question 43.
19.2 ÷ 104
Estimate: _____
Quotient: _____
Answer:
Estimate: 0.02
Quotient: 0.00192

Explanation:
By dividing 19.2 ÷ 104 we will get
= 19.2 ÷ (10×10×10×10)
= 19.2 ÷ 10000
= 0.00192

Question 44.
872.3 ÷ 102
Estimate: _____
Quotient: _____
Answer:
Estimate: 9.
Quotient: 8.723

Explanation:
By dividing 872.3 ÷ 102 we will get
= 872.3 ÷ (10×10)
= 8.723.

Question 45.
16.6 ÷ 103
Estimate: _____
Quotient: _____
Answer:
Estimate: 0.02
Quotient: 0.0166

Explanation:
By dividing 16.6 ÷ 103 we will get
= 16.6 ÷ (10×10×10)
= 16.6 ÷ 1000
= 0.0166.

Question 46.
14.85 × 102
Estimate: _____
Quotient: _____
Answer:
Estimate: 1490.
Quotient: 1,485

Explanation:
By multiplying 14.85 × 102 we will get
= 14.85 × 10 × 10
= 1,485.

Question 47.
1.256 × 104
Estimate: _____
Quotient: _____
Answer:
Estimate: 12,600
Quotient: 12,560

Explanation:
By multiplying 1.256 × 104 we will get
= 1.256 × 10 × 10 × 10 × 10
= 12,560.

Question 48.
6.798 × 103
Estimate: _____
Quotient: _____
Answer:
Estimate: 6,800.
Quotient: 6,798

Explanation:
By multiplying 6.798 × 103 we will get
= 6.798 × 10 × 10 × 10
= 6,798

Simplify and solve. Show your work.

Question 49.
(10 – 8)3 + (6 × 4) × (4 – 2) + 103 =
Simplify inside the parentheses: _____________
Simplify exponents: __________
Multiply: ____________
Add and subtract from left to right: _______
Final answer: __________
Answer:
(10 – 8)3 + (6 × 4) × (4 – 2) + 103 = 1,056.

Explanation:
Given the expression is (10 – 8)3 + (6 × 4) × (4 – 2) + 103 by simplifying inside the parentheses we will get
= (2)3 + (24) × (2) + 103
= 8 + 24 × 2 + 1000
= 8 + 48 + 1000
= 1,056.

Question 50.
4{[2(2 + 5) + 2] – 9}
Simplify inside the parentheses: ____________
Simplify inside the brackets: ____________
Simplify inside the braces: _________
4{[2(2 + 5) + 2] – 9} = _______
Answer:
4{[2(2 + 5) + 2] – 9} = 28.

Explanation:
Given the expression is 4{[2(2 + 5) + 2] – 9} by simplifying inside the parentheses we will get
= 4{[2(7) + 2] – 9}
= 4{[14 + 2] – 9}
= 4{[16] – 9}
= 4{16 – 9}
= 4{7}
= 28.

Question 51.
(4 × 7) ÷ 21 = _____
Answer:

Explanation:
Given the expression is (4 × 7) ÷ 21  by simplifying inside the parentheses we will get

Question 52.
4 + (10 × 4) – 42 = _____
Answer:
4 + (10 × 4) – 42 = 28.

Explanation:
Given the expression is 4 + (10 × 4) – 42 by simplifying inside the parentheses we will get
= 4 + (10 × 4) – 42
= 4 + (40) – 16
= 44 – 16
= 28.

Add or subtract. Give the answers in simplest terms. Change any improper fractions to mixed numbers.

Question 53.
\(\frac{1}{4}\) + \(\frac{2}{4}\) = _____
Answer:
\(\frac{1}{4}\) + \(\frac{2}{4}\) = \(\frac{3}{4}\).

Explanation:
The addition of \(\frac{1}{4}\) + \(\frac{2}{4}\) which is
= \(\frac{1+2}{4}\)
= \(\frac{3}{4}\).

Question 54.
\(\frac{3}{8}\) + \(\frac{4}{8}\) = _____
Answer:
\(\frac{3}{8}\) + \(\frac{4}{8}\) = \(\frac{7}{8}\).

Explanation:
The addition of \(\frac{3}{8}\) + \(\frac{4}{8}\) which is
= \(\frac{3+4}{8}\)
= \(\frac{7}{8}\).

Question 55.
\(\frac{5}{6}\) – \(\frac{1}{6}\) = _____
Answer:
\(\frac{5}{6}\) – \(\frac{1}{6}\) = \(\frac{2}{3}\).

Explanation:
The subtraction of \(\frac{5}{6}\) – \(\frac{1}{6}\) which is
= \(\frac{5-1}{6}\)
= \(\frac{4}{6}\)
= \(\frac{2}{3}\).

Question 56.
2\(\frac{1}{3}\) + \(\frac{3}{4}\) = _____
Answer:
2\(\frac{1}{3}\) + \(\frac{3}{4}\) = \(\frac{37}{12}\).

Explanation:
The addition of 2\(\frac{1}{3}\) + \(\frac{3}{4}\) which is
= \(\frac{7}{3}\) + \(\frac{3}{4}\)
= \(\frac{28+9}{12}\)
= \(\frac{37}{12}\).

Question 57.
\(\frac{5}{12}\) + \(\frac{1}{8}\) = _____
Answer:
\(\frac{5}{12}\) + \(\frac{1}{8}\) = \(\frac{13}{24}\).

Explanation:
The addition of \(\frac{5}{12}\) + \(\frac{1}{8}\) which is
= \(\frac{10+3}{24}\)
= \(\frac{13}{24}\).

Question 58.
\(\frac{7}{9}\) + \(\frac{11}{18}\) = _____
Answer:
\(\frac{7}{9}\) + \(\frac{11}{18}\) = \(\frac{25}{18}\).

Explanation:
The addition of \(\frac{7}{9}\) + \(\frac{11}{18}\) which is
= \(\frac{14+11}{18}\)
= \(\frac{25}{18}\).

Question 59.
McGraw Hill Math Grade 5 Pretest Answer Key 13
Answer:
1\(\frac{2}{7}\) – \(\frac{1}{5}\) = \(\frac{38}{35}\).

Explanation:
The subtraction of 1\(\frac{2}{7}\) – \(\frac{1}{5}\) which is
= \(\frac{9}{7}\) – \(\frac{1}{5}\)
= \(\frac{45-7}{35}\)
= \(\frac{38}{35}\).

Question 60.
McGraw Hill Math Grade 5 Pretest Answer Key 14
Answer:
6\(\frac{1}{3}\) + 3\(\frac{5}{6}\) = \(\frac{61}{6}\).

Explanation:
The addition of 6\(\frac{1}{3}\) + 3\(\frac{5}{6}\) which is
= \(\frac{19}{3}\) + \(\frac{23}{6}\)
= \(\frac{38+23}{6}\)
= \(\frac{61}{6}\).

Question 61.
McGraw Hill Math Grade 5 Pretest Answer Key 26
Answer:
7\(\frac{1}{5}\) + 8\(\frac{1}{2}\) = 15\(\frac{7}{10}\).

Explanation:
The addition of 7\(\frac{1}{5}\) + 8\(\frac{1}{2}\) which is
= \(\frac{36}{5}\) + \(\frac{17}{2}\)
= \(\frac{72+85}{10}\)
= \(\frac{157}{10}\)
= 15\(\frac{7}{10}\).

Question 62.
McGraw Hill Math Grade 5 Pretest Answer Key 15
Answer:
9\(\frac{1}{2}\) – 1\(\frac{2}{3}\) = 7\(\frac{5}{6}\).

Explanation:
The subtraction of 9\(\frac{1}{2}\) – 1\(\frac{2}{3}\) which is
= \(\frac{19}{2}\) – \(\frac{5}{3}\)
= \(\frac{57-10}{6}\)
= \(\frac{47}{6}\)
= 7\(\frac{5}{6}\).

Find the equivalent fraction.

Question 63.
equivalent to \(\frac{4}{6}\), denominator 24 ____
Answer:
\(\frac{16}{24}\).

Explanation:
The equivalent fraction to \(\frac{4}{6}\) as denominator 24 will be \(\frac{4}{6}\) × \(\frac{4}{4}\)
= \(\frac{16}{24}\).

Question 64.
equivalent to \(\frac{1}{2}\), denominator 42 _____
Answer:
\(\frac{21}{42}\).

Explanation:
The equivalent fraction to \(\frac{1}{2}\) as denominator 42 will be \(\frac{1}{2}\) × \(\frac{21}{21}\)
= \(\frac{21}{42}\).

Question 65.
equivalent to \(\frac{1}{3}\), denominator 36 ______
Answer:
\(\frac{12}{36}\).

Explanation:
The equivalent fraction to \(\frac{1}{3}\) as denominator 36 will be \(\frac{1}{3}\) × \(\frac{12}{12}\)
= \(\frac{12}{36}\).

Question 66.
equivalent to \(\frac{3}{8}\), denominator 32 ____
Answer:
\(\frac{12}{32}\).

Explanation:
The equivalent fraction to \(\frac{3}{8}\) as denominator 32 will be \(\frac{3}{8}\) × \(\frac{4}{4}\)
= \(\frac{12}{32}\).

Multiply.

Question 67.
16 × \(\frac{5}{8}\) =________
Answer:
16 × \(\frac{5}{8}\) = 40.

Explanation:
The multiplication of 16 × \(\frac{5}{8}\) is 2×5 = 40.

Question 68.
18 × \(\frac{2}{3}\) =________
Answer:
18 × \(\frac{2}{3}\) = 12.

Explanation:
The multiplication of 18 × \(\frac{2}{3}\) which is 6×2 = 12.

Question 69.
\(\frac{3}{10}\) × \(\frac{4}{5}\) =________
Answer:
\(\frac{6}{25}\).

Explanation:
The multiplication of \(\frac{3}{10}\) × \(\frac{4}{5}\) which is \(\frac{6}{25}\).

Solve.

Question 70.
Some ferrets are about 18 inches long. A hamster is about \(\frac{1}{3}\) as long. About how many inches long is a hamster?
Answer:
The number of inches will be 17\(\frac{2}{3}\) inches.

Explanation:
Given that ferrets are about 18 inches long and a hamster is about \(\frac{1}{3}\) as long. So the number of inches will be 18 – \(\frac{1}{3}\) which is
= \(\frac{54-1}{3}\)
= \(\frac{53}{3}\)
= 17\(\frac{2}{3}\) inches.

Question 71.
\(\frac{1}{2}\) of the photos on Delia’s digital camera are of friends and family members, \(\frac{1}{5}\) of those photos are of her best friend Aiesha. What fraction of the total number of photos on Delia’s camera is of Aiesha?
Answer:
The total number of photos on Delia’s camera is of Aiesha are \(\frac{7}{10}\) photos.

Explanation:
Given that \(\frac{1}{2}\) of the photos on Delia’s digital camera are of friends and family members and \(\frac{1}{5}\) of those photos are of her best friend Aiesha. So the number of photos on Delia’s camera is of Aiesha are \(\frac{1}{2}\) + \(\frac{1}{5}\)
= \(\frac{5+2}{10}\)
= \(\frac{7}{10}\) photos.

Question 72.
A mother blue whale is 87\(\frac{2}{3}\) feet long. Her baby is 22\(\frac{5}{8}\) feet long. About how much longer is the mother than the baby? Use front-end estimation to estimate the difference.
Answer:
The difference is 65\(\frac{1}{24}\).

Explanation:
Given that a mother blue whale is 87\(\frac{2}{3}\) feet long which is \(\frac{263}{3}\) and her baby is 22\(\frac{5}{8}\) feet long which is \(\frac{181}{8}\). So the difference will be \(\frac{263}{3}\) – \(\frac{181}{8}\) which is
= \(\frac{2104-543}{24}\)
= \(\frac{1561}{24}\)
= 65\(\frac{1}{24}\).

Multiply to find the area of each rectangle.

Question 73.
9 ft long × \(\frac{4}{5}\) ft wide
area = ____________
Answer:
Area = 7\(\frac{1}{5}\) sq ft.

Explanation:
The area of the rectangle is L×W which is 9 ft × \(\frac{4}{5}\) ft
= \(\frac{9×4}{5}\) ft
= \(\frac{36}{5}\) ft
= 7\(\frac{1}{5}\) sq ft.

Question 74.
8 m long × \(\frac{1}{2}\) m wide
area = ____________
Answer:
Area = 4 sq m.

Explanation:
The area of the rectangle is L×W which is 8m × \(\frac{1}{2}\)m
= 4 sq m.

Find each quotient. Draw models to help. Use multiplication to check your answers.

Question 75.
\(\frac{1}{4}\) ÷ 9 = _____
Answer:
\(\frac{1}{4}\) ÷ 9 = 0.027.

Explanation:
Given the expression is \(\frac{1}{4}\) ÷ 9 which is
= \(\frac{1}{36}\)
= 0.027.

Question 76.
\(\frac{1}{2}\) ÷ 5 = _____
Answer:
\(\frac{1}{2}\) ÷ 5 = 0.1.

Explanation:
Given the expression is \(\frac{1}{2}\) ÷ 5 which is
= \(\frac{1}{10}\)
= 0.1

Question 77.
12 ÷ \(\frac{1}{8}\) = _____
Answer:
12 ÷ \(\frac{1}{8}\) = 96.

Explanation:
Given the expression is 12 ÷ \(\frac{1}{8}\) which is
= 12 ÷ \(\frac{1}{8}\)
= 12 × 8
= 96.

Solve.

Question 78.
A giraffe’s tongue is about 45 centimeters long. What is the length of a giraffe’s tongue in millimeters?
Answer:
The length of a giraffe’s tongue in millimeters is 450 mm.

Explanation:
Given that the giraffe’s tongue is about 45 centimeters long, in millimeters, it will be 45 × 10 = 450mm.

Question 79.
Mrs. Jones is measuring the mass of 2 eggplants. One eggplant has a mass of 0.68 kilograms and the other has a mass of 0.45 kilograms. What is the difference of the masses of both eggplants in grams?
Answer:
The difference is 0.23 grams.

Explanation:
Given that Mrs. Jones is measuring the mass of 2 eggplants and one eggplant has a mass of 0.68 kilograms and the other has a mass of 0.45 kilograms. So the difference in the masses of both eggplants in grams is 0.68 – 0.45 which is 0.23 grams.

Question 80.
A server pours mineral water from a 1 -liter bottle into a glass. After pouring, there are 0.3 liters left in the bottle. In milliliters, how much water did the server pour?
Answer:
The server serves 700 ml of water.

Explanation:
Given that a server pours mineral water from a 1 -liter bottle into a glass and after pouring, there are 0.3 liters left in the bottle which is 1 – 0.3 which is 0.7 liters. As 1 liter is 1000 ml, so 0.7 liters will be 1000×0.7 = 700 ml.

Question 81.
Good hand washing involves using soap and clean, warm water for at least 20 seconds. If Sheng washes his hands 9 times each day, how many minutes does he spend washing his hands in 2 days?
Answer:
The number of minutes will be 6 minutes.

Explanation:
Given that hand washing involves using soap and clean, warm water for at least 20 seconds. So if Sheng washes his hands 9 times each day number of minutes he spends washing his hands in 2 days will be 18 × 20 = 360 seconds which is 6 minutes.

Question 82.
The Tyrannosaurus Rex had a skull up to 5 feet long. An adult human’s skull is about 7 inches long. How many inches longer is a Tyrannosaurus Rex skull than a human skull?
Answer:
The number of inches long will be 53 inches.

Explanation:
Given that the length of the Tyrannosaurus Rex skull is 5 feet long and an adult human’s skull is about 7 inches long. So 5 feet in inches will be 5×12 which is 60 inches long. So the number of inches long will be 60-7 which is 53 inches.

Count the cubes in each object. Write the total.

Question 83.
McGraw Hill Math Grade 5 Pretest Answer Key 16
_______
Answer:
5.

Explanation:
The number of cubes will be 5 for the given angle.

Question 84.
McGraw Hill Math Grade 5 Pretest Answer Key 17
_______
Answer:
24.

Explanation:
The number of cubes for a right angle is 24.

Question 85.
McGraw Hill Math Grade 5 Pretest Answer Key 18
______
Answer:
24.

Explanation:
The number of cubes for straight angles is 24.

Count the cubes in each object. Write the total.

Question 86.
McGraw Hill Math Grade 5 Pretest Answer Key 19
____ cubes
Answer:
8 cubes.

Explanation:
The number of cubes is 2 × 2 × 2 which is 8 cubes.

Question 87.
McGraw Hill Math Grade 5 Pretest Answer Key 20
___ cubes
Answer:
32 cubes.

Explanation:
The number of cubes is 4 × 4 × 2 which is 32 cubes.

Question 88.
McGraw Hill Math Grade 5 Pretest Answer Key 21
___ cubes
Answer:
12 cubes.

Explanation:
The number of cubes is 2 × 2 × 3 which is 12 cubes.

Classify each triangle as equilateral, scalene, or isosceles. Then classify each triangle as acute, obtuse, or right.

Question 89.
McGraw Hill Math Grade 5 Pretest Answer Key 22
Answer:
Equilateral triangle.

Explanation:
Given triangle is an equilateral triangle as each side is 60 degrees.

Question 90.
McGraw Hill Math Grade 5 Pretest Answer Key 23
Answer:
Isosceles triangle.

Explanation:
The given triangle is an isosceles triangle. As there are both two sides are equal and two angles are equal.

The heights of 6 ostriches are listed below. Complete the line plot to show this data set. Then use the line plot for Exercises 92 and 93.

Question 91.
Ostrich 1: 7\(\frac{1}{2}\) ft Ostrich 2: 7\(\frac{3}{4}\) ft Ostrich 3: 8 ft
Ostrich 4: 6 ft Ostrich 5: 7\(\frac{1}{2}\) ft Ostrich 6: 7\(\frac{1}{2}\) ft
McGraw Hill Math Grade 5 Pretest Answer Key 24
Answer:

Question 92.
How much taller is the tallest ostrich than the shortest ostrich?
_____________
Answer:
The tallest ostrich is 2 ft.

Explanation:
The taller ostrich size is 8 ft and the shortest size is 6 ft. So the difference will be 8-6 which is 2 ft.

Question 93.
What is the combined height of the ostriches with the most common height?
Answer:
The combined height of the ostriches with the most common height is 22 1/2 ft.

Explanation:
The combined height of the ostriches with the most common height is 7 1/2+7 1/2+7 1/2 which is 15/2 + 15/2 + 15/2
= (15+15+15)/2
= 45/2
= 22 1/2 ft.

Look at the grid. Write the ordered pair for each point.

Question 94.
A ____
Answer:
(4,4).

Explanation:
The ordered pair of A is (4,4).

Question 95.
B _____
Answer:
(1,1).

Explanation:
The ordered pair of B is (1,1).

McGraw Hill Math Grade 5 Pretest Answer Key 25

Question 96.
C _____
Answer:
(3,2)

Explanation:
The ordered pair of C is (3,2).

Question 97.
D _____
Answer:
D(2,3).

Explanation:
The ordered pair of D is (2,3).

Leave a Comment