Numerical Expressions

Which family's number of items purchased are composite numbers?

• Green

• Heart

• Jones

• Brown

Lucy had some money saved. She spent $8 of that money on lunch. She added $50 to her savings from money earned for washing dishes all week. After these transactions, her savings was $67. Which number sentence could be used to find s, the amount of money Lucy had before these transaction?

• s - 8 + 50 = 67

• 67 + s = 50 + 8

• (50-8) - s = 67

• 67 - 8 + 50 = a

An expression is shown below.

28[ 12-6 (9-4)] + 8

Which statement about the parentheses or brackets in this expression is true?

• Brackets indicate that 28 times 12 should be solved first.

• Parentheses indicate the difference of 9 and 4 should be solved first.

• Brackets indicate that 6 less than 12 should be solved first.

• Parentheses indicate that 6 times 9 should be solved first.

• 24

• 18

• 48

• 12

Kenzie received $65 for her all A's report card. She purchased mini pizzas and cherry slushies for herself and for her friend.

Each pizza cost $9. Each cherry slushie cost $3.

Kenzie wrote an equation to represent d, the total amount of dollars she had left after buying food and drinks.

d = 65 - [(2 x 9) + (2 x 3)]

How much money did Kenzie have left after buying food and drinks?

At Orr Elementary School, the fifth-grade students have a total of 435 fidgets. 330 of the fidgets are blue. 20 of the fidgets are yellow. The rest of the fidgets are green.

Which equation could be used to determine the number of fidgets that are green?

• 435 + (330 + 20) = G

• 435 - (330 + 20) = G

• G + 435 = 330 + 20

• G - 435 = 330 - 20

An expression is shown below.

2 [68 - 5 (4 + 6)]

Which statement best describes the relationship between the digit 5 and the parentheses in the expression?

• 5 less than 68 times the sum of 4 and 6

• 5 times 4 then add 6

• 5 less than 68

• 5 times the sum of 4 and 6

Melanie has an essay to turn in for a scholarship. The essay could be not more than 1,200 words, but at least 800 words, Melanie wrote an essay that was 1,423 words long. She deleted 193 words so far.

Melanie needs to delete how many words to make her essay more than 800 words but not more than 1,200 words?

• 107 words

• 223 words

• 30 words

• 200 words

Chuck made some arrays to show the factors of his mystery number. Rico made some arrays to show the factors of his mystery number. Which statement about the boys' mystery numbers is true?

• Both boys had composite mystery numbers.

• Chuck had a composite mystery number, and Rico had a prime mystery number.

• Chuck had a prime mystery number, and Rico had a composite mystery number.

• Both boys had prime mystery numbers.