Solving Numerical Expressions Review

The following equation can be used to find p, the number of extra points that Charles earned on his reading test: p = 98 – (18 x 5) What is the number of extra points that Charles earned on his reading test?

• 8

• 18

• 20

• 9

Which step should be solved first in the following expression? [13 + (9 ÷ 3) - 6] x 12

• 13 + 9

• 9 ÷ 3

• 3 - 6

• 6 x 12

Dominic saved his money to buy four new toy cars for his little brother. He had $15 from his birthday, and he saved $2.30 each week from his earnings for doing chores. The amount of money that each toy car cost is represented by the expression below. [15 + 4(2.30)] ÷ 4 What is the value of this expression?

What is the value of the following expression?

5/6 - (1/3 + 5/12)

• 11/12

• 1 1/12

• 1/2

• 1/12

An expression is shown below. 9[(16 + 4) – 5 x 2] Which statement is true about the parentheses in this expression?

• The parentheses indicate that 5 x 2 should be solved first.

• The parentheses indicate that 16 + 4 should be solved last.

• The parentheses indicate that 16 + 4 should be solved after 5 x 2.

• The parentheses indicate that 16 + 4 should be solved before 5 x 2.

Esmeralda makes slime at home. She uses a 1/2 of a cup of glue for her first recipe. She then makes 6 more batches with 3 cups of glue each. The total amount of glue that Esmeralda used can be found using the expression below. 1/2 + (6 x 3) How much glue did Esmeralda use?

• 18 1/2 cups

• 10 1/2 cups

• 19 1/2 cups

• 9 cups

An expression is given below. 27 ÷ (3 x 3) + 15 Which statement is true about the parentheses in this expression?

• The parentheses indicate that 27 ÷ 3 should be solved first.

• The parentheses indicate that 3 + 15 should be solved first.

• The parentheses indicate that 3 x 3 should be solved first.

• The parentheses indicate that 3 x 3 should be solved last.

Jennifer packs ornaments to be put away each year. - She packs 15 boxes, each with 12 ornaments. - She broke 13 ornaments this year. - She was given 5 ornaments as a gift this year. Which expression can be used to show how many ornaments Jennifer has?

• [(15 x 12) – 13] + 5

• 15 x 12 – 13 – 5

• (15 x 12) – (13 + 5)

• (15 + 12) – 13 + 5

Abraham took $20 to the grocery store. He bought two bags of apples for $2.75 each and a package of chicken for $6.30. The amount of change that Abraham received after he purchased these items can be represented using the expression below. 20 – [(2 x 2.75) + 6.30] What is the amount of change that Abraham received in dollars and cents?

An expression is shown below. 12[6.3 + 3(1.9)] Which step in the expression should be solved first?

• 12 × 6.3

• 3(1.9)

• 6.3 + 3

• None of the above