All the solutions provided in McGraw Hill Math Grade 5 Answer Key PDF Chapter 5 Lesson 2 Expressions with Parentheses are as per the latest syllabus guidelines.
McGraw-Hill Math Grade 5 Answer Key Chapter 5 Lesson 2 Expressions with Parentheses
Solve.
Simplify and solve. Show your work.
Question 1.
(20 + 7) – 3
27 – 3 = 24
Answer:
(20 + 7) – 3 = 24.
Explanation:
Given that the expression is (20 + 7) – 3 which is
= (27) – 3
= 24.
Question 2.
8 + (5 × 8) × 6
Answer:
8 + (5 × 8) × 6 = 248.
Explanation:
Given that the expression is 8 + (5 × 8) × 6 which is
= 8 + (40) × 6
= 8 + 240
= 248.
Question 3.
(5 × 2) ÷ 22
Answer:
(5 × 2) ÷ 22 = 2.5.
Explanation:
Given that the expression is (5 × 2) ÷ 22 = which is
= 10 ÷ 4
= 2.5.
Question 4.
(43 – 8) – (22 – 18)2
Answer:
(43 – 8) – (22 – 18)2 = 19.
Explanation:
Given that the expression is (43 – 8) – (22 – 18)2 which is
= (35) – (4)2
= 35 – 16
= 19.
Question 5.
32 × (2 × 5) + 7 – (2 × 3)
Answer:
32 × (2 × 5) + 7 – (2 × 3) = 91.
Explanation:
Given that the expression is 32 × (2 × 5) + 7 – (2 × 3) which is
= 32 × (10) + 7 – (6)
= 9 × (10) + 7 – 6
= 90 + 7 – 6
= 97 – 6
= 91.
Question 6.
4 + 22 × (5 × 2) ÷ 4
Answer:
4 + 22 × (5 × 2) ÷ 4 = 14.
Explanation:
Given that the expression is 4 + 22 × (5 × 2) ÷ 4 which is
= 4 + 22 × (10) ÷ 4
= 4 + 4× 10 ÷ 4
= 4 + 40 ÷ 4
= 4 + 10
= 14.
Question 7.
(40 ÷ 5) + (22 – 12)2
Answer:
(40 ÷ 5) + (22 – 12)2 = 108.
Explanation:
Given that the expression is (40 ÷ 5) + (22 – 12)2 which is
= (40 ÷ 5) + (22 – 12)2
= (8) + (10)2
= 8 + 100
= 108.
Question 8.
Use parentheses to show the operations used: 6 × 4 + 12 – 8 + 22 = 32
Answer:
(6 × 4) + (12 – 8) + 22 = 32.