# McGraw Hill My Math Grade 5 Chapter 7 Check My Progress Answer Key

All the solutions provided in McGraw Hill My Math Grade 5 Answer Key PDF Chapter 7 Check My Progress will give you a clear idea of the concepts.

## McGraw-Hill My Math Grade 5 Chapter 7 Check My Progress Answer Key

Vocabulary Check

State whether each sentence is true or false. If false, replace the underlined word or number to make a true sentence.

Question 1.
A combination of numbers and operations is called a formula.
Algebra.
Explanation:
A combination of numbers and operations is called an Algebra.
When we combine numbers and variables in a valid way,
using operations such as addition, subtraction, multiplication, division and so on.,
The resulting combination of mathematical symbols is called a mathematical expression or an Algebraic expression.

Question 2.
The numerical expression of (2 × 4) + (3 × 3) has a value of 33.
17
Explanation:
The numerical expression of (2 × 4) + (3 × 3) has a value of 33 is false,
because (2 × 4) + (3 × 3) = 8 + 9 = 17.

Question 3.
The order of operations is a set of rules to follow when more than one operation is used in an expression.
True.
Explanation:
The order of operations is a rule that tells correct sequence of steps for evaluating expression. We can remember the order using PEMDAS:
Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

Concept Check

Question 4.
Find the value of 2 × {15 – [(12 ÷ 3) × 2]}. So, 2 × {15 – [(12 ÷ 3) × 2]} = _____________
14
Explanation: Write each phrase as a numerical expression.

Question 5.
multiply 4 and 7, then subtract 5 _______________
(4 x 7) – 5 = 23
Explanation:
multiply 4 and 7,
4 x 7 28
then subtract 5,
28 – 5 = 23

Question 6.
add 3 to the product of 10 and 4 _______________
3 + (10 x 4) = 43
Explanation:
First find the product of 10 and 4,
10 x 4 = 40
then add 3 to the product,
3 + 40 = 43

Question 7.
subtract 8 from the quotient of 15 and 3 _______________
(15 ÷ 3) – 8 = -3
Explanation:
The quotient of 15 ÷ 3 = 5
Then subtract 8 from the quotient of 15 ÷ 3 = 5
5 – 8 = -3

Question 8.
subtract 9 from 13, then multiply the result by 2 _______________
(13 – 9) x 2 = 8
Explanation:
Subtract 9 from 13,
13 – 9 = 4
then multiply the result by 2,
4 x 2 = 8

Problem Solving

Question 9.
Tia and her five friends are going to the ice skating rink. Each person pays $5 for admission and$5 for food. Write and evaluate a numerical expression to find the total cost for admission and food. The expression would be (6 x $5) + (6 x$5) = $60 Explanation: Tia and her five friends are going to the ice skating rink. No. of friends going to ice skating 1 + 5 = 6 Each person pays$5 for admission and $5 for food. (6 x$5) + (6 x $5)$30 + $30 =$60

Question 10.
Cameron has 2 video game holder stands. Each can hold 2 rows of 20 games. Write and evaluate a numerical expression to find the total number of games Cameron’s video game holder stands can hold.
2 x [(20 x 2) = 80 games.
Explanation:
Cameron has 2 video game holder stands.
Each can hold 2 rows of 20 games.
2 x 20 = 40
Numerical expression to find the total number of game holder stands can hold,
2 x [(20 x 2)
= 2 x 40
= 80 games.

Test Practice

Question 11.
Arturo buys 3 containers of ice cream for $5 each and a cake that costs$8 to take to his friend’s party. Which expression will allow you to find how much money Arturo spent on ice cream and cake?
(A) $8 × 3 ×$5
(B) (3 × $5) +$8
(C) (3 × $8) +$5
(D) 3 × ($5 +$8)
Arturo buys 3 containers of ice cream for $5 each, 3 x$5 = $15 Cost of cake =$8.
(3 × $5) +$8