All the solutions provided in McGraw Hill Math Grade 5 Answer Key PDF Chapter 1 Test are as per the latest syllabus guidelines.
McGraw-Hill Math Grade 5 Chapter 1 Test Answer Key
Question 1.
What is the word form of 1,000,432,506?
Answer: The word form of 1,000,432,506 is One Billion Four Hundred and Thirty-Two Thousand Five Hundred and Six.
Question 2.
What does the 2 in 254 represent? __________________________
What does the 2 in 728 represent? __________________________
How does the value of 2 in 254 compare to the value of 2 in 728?
_______________________
Answer:
The value of 2 in 254 represent 2 hundreds or 200.
The value of 2 in 728 represents 2 tens or 20.
The value of 2 in 254 compared to the value of 2 in 728 is different in place value as 2 in 254 is 200 and the value of 2 in 728 is 20.
Question 3.
How does the value of 9 in 5,935 compare to the value of 9 in 9,000? ________
Answer: The value of 9 in 5,935 compared to the value of 9 in 9,000 is different in place value as 9 in 5935 is 900 and 9 in 9000 is 9 thousand.
Question 4.
What is 23 × 103 in expanded form? __________________________________
What is 23 × 103 in standard form? ____________________________________
What is 23 × 103 in shortened word form? __________________________
Answer:
23 × 103 in expanded form is 23 × 10 × 10 × 10 = 23,000 = Twenty Three Thousand
23 × 103 in standard form is 23000.
23 × 103 in shortened word form is 23 Thousand.
Write the standard form of each number.
Question 5.
64 × 104 _______________
Answer:
64 × 104 = 64 × 10 × 10 × 10 × 10 = 640,000
Thus the standard form of 64 × 104 is 640,000.
Question 6.
3,030 ÷ 103 ______
Answer:
3,030 ÷ 103 = 3030 ÷ 1000 = 3.030
Thus the standard form of 3,030 ÷ 103 is 3.030
Question 7.
0 0.5 × 104 ______
Answer:
0.5 × 104 = 0.5 × 10 × 10 × 10 × 10
= 5 × 10 × 10 × 10 = 5000
Thus the standard form of 0.5 × 104 is 5000.
Question 8.
653.5 × 102 ____________
Answer:
653.5 × 102 = 653.5 × 10 × 10 = 65350
Thus the standard form of 653.5 × 102 is 65350
Question 9.
0.43 ÷ 101 ____________
Answer:
0.43 ÷ 10 = 0.043
Thus the standard form of 0.43 ÷ 10 is 0.043
Question 10.
0.77 × 102 _____
Answer:
0.77 × 102 = 0.77 × 10 × 10 = 77
Thus the standard form of 0.77 × 102 is 77.
Write the shortened word form of each number.
Question 11.
6.92 __________________________________________
Answer: 6 and 92 hundredths is the shortened word form of 6.92
Question 12.
0.875 _____________________________ __________
Answer: 0 and 875 thousandths is the shortened word form of 0.875
Question 13.
72.7 _____________
Answer: 72 and 7 tenths is the shortened word form of 72.7
Compare the two numbers. Write <, >, or =.
Question 14.
23.00 ______ 2.300
Answer: 23.00 > 2.300
23 is greater than 2.3
Question 15.
2.454 ______ 2.456
Answer: 2.454 < 2.456
2.454 is less than 2.456
Question 16.
11.117 ______ 11.17
Answer: 11.117 < 11.17
11.117 is less than 11.170
Question 17.
0.3 ______ 0.300
Answer: 0.3 = 0.300
0.3 is equal to 0.300
Question 18.
4 ______ 0.004
Answer: 4 > 0.004
4 is greater than 0.004
Question 19.
9.9 ______ 10.01
Answer: 9.9 < 10.01
9.9 is less than 10.01
Round to the nearest tenth.
Question 20.
23.271 _______________
Answer:
23.271
If the number is greater than 5 then we have to round to 1 and if the number is less than 5 then we have to round to 0.
In the above number the hundredths value is greater than 5 so we have to add 1 to the tenths place.
23.271 to the nearest tenth is 23.3
Question 21.
2.445 _______________
Answer:
2.445
If the number is greater than 5 then we have to round to 1 and if the number is less than 5 then we have to round to 0.
In the above number the hundredths value is less than 5.
2.445 to the nearest tenth is 2.4
Question 22.
1.117 ________
Answer:
1.117
If the number is greater than 5 then we have to round to 1 and if the number is less than 5 then we have to round to 0.
In the above number the hundredths value is less than 5.
1.117 to the nearest tenth is 1.1
Round to the nearest hundredth.
Question 23.
23.271 _______________
Answer:
23.271
If the number is greater than 5 then we have to round to 1 and if the number is less than 5 then we have to round to 0.
In the above number, the thousandths value is less than 5.
23.271 to the nearest hundredth is 23.27
Question 24.
2.445 _______________
Answer:
2.445
If the number is greater than 5 then we have to round to 1 and if the number is less than 5 then we have to round to 0.
2.445 to the nearest hundredth is 2.45
Question 25.
1.117 _____
Answer:
1.117
If the number is greater than 5 then we have to round to 1 and if the number is less than 5 then we have to round to 0.
In the above number the thousandth value is greater than 5 so we have to add 1 to the hundredth place.
1.117 to the nearest hundredth is 1.12
Question 26.
The average distance between the Earth and the Sun is 57 million kilometers. What is this number in standard form?
Answer:
Given that
The average distance between the Earth and the Sun is 57 million kilometers
57 million in the standard form can be written as 57,000,000.
Question 27.
In 2011, the population of Mexico City was estimated to be 113,724,226. What is the value of the number to the left of the underlined digit?
__________________________
How does that value compare to the value of the underlined digit?
__________________________
Answer:
Given that,
In 2011, the population of Mexico City was estimated to be 113,724,226.
The value of 1 number to the left of the underlined digit is 10 million.
Question 28.
In July 2009, the reported population of New York City was 8,391,881. What is the value of the number to the right of the underlined digit?
__________________________
How does that value compare to the value of the underlined digit?
__________________________
Answer: The place value of 8,391,881 is 800.
Use the data in the chart for items 29 to 32.
Question 29.
What is the area of Tuvalu? Write the expanded form of this number.
Answer:
Area of Tuvalu = 23.309 sq. km
23.309 in the expanded form is (2 × 10) + (3 × 1) + (3 × \(\frac{1}{10}\)) + (9 × \(\frac{1}{1,000}\))
Question 30.
What is the shortened word form for the area of Monaco?
Answer:
Area of Monaco = 1.812
1.812 in the shortened word form is 1 and 812 thousandths
Question 31.
What is the area of San Marino in word form?
_______________________
Answer:
The area of San Marino 62.159 is Sixty Two and One Hundred Fifty Nine Thousandths.
Question 32.
What is the area of the Marshall Islands rounded to the nearest hundredth?
Answer:
Area of the Marshall Islands = 181.299
If the number is greater than 5 then we have to round to 1 and if the number is less than 5 then we have to round to 0.
181.299 to the nearest hundredth is 181.30
Question 33.
Four planes are lined up to take off. One will fly to Atlanta, one to Birmingham, one to Charlotte, and one to Denver. The plane to Birmingham is not the first or the last. The plane to Atlanta is third. The plane to Denver is not the first. In what order will the planes take off?
Answer:
Given,
Four planes are lined up to take off.
One will fly to Atlanta, one to Birmingham, one to Charlotte, and one to Denver.
The plane to Birmingham is not the first or the last. The plane to Atlanta is third.
So, the order is Charlotte, Birmingham, Atlanta, Denver.