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.

Answer:

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.

Answer:

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.

Answer:

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]} = _____________

Answer:

14

Explanation:

**Write each phrase as a numerical expression.**

Question 5.

multiply 4 and 7, then subtract 5 _______________

Answer:

(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 _______________

Answer:

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 _______________

Answer:

(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 _______________

Answer:

(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.

Answer:

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.

Answer:

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)

Answer:

Option(B)

Explanation:

Arturo buys 3 containers of ice cream for $5 each,

3 x $5 = $15

Cost of cake = $8.

The expression to find total money Arturo spent on ice cream and cake,

(3 × $5) + $8

15 + 8 = $23.