Multiplication and Division Expressions

True or false: A variable is a value in the expression or equation that is known, and uses numbers to represent it.

• true

• false

Select all that apply: An Expression is a math sentence that must have ...

• a number, variable, or both

• a symbol of operation

• a equal sign (=)

• No equal sign

Find the value of the expression: m x 3 when m=7

• 21

• 22

• 27

• 28

Find the value of the expression: s ÷ 12 when s=144

• 9

• 10

• 11

• 12

Find the value of the expression: m x (16÷ 4) when m=5

• 17

• 18

• 19

• 20

Find the value of the expression: 9 x (m÷ 8) when m=72

• 18

• 80

• 81

• 801

Find the value of the expression: 100 ÷ (5 x 4)

• 18

• 80

• 81

• 801

Find the value of the expression: 8 x (48÷ 6)

• 46

• 48

• 84

• 64

Select the best expression: Each week Lily spends 30 minutes a day drawing in her room for 3 days. Lily does this for 5 weeks.

• 30 x (5 x 3)

• 30 x (15 + 3)

Select the best expression: Each week Serena spends 1 hour a day doing yoga for 5 days. Serena does this for 10 weeks.

• (10 + 5) x 1

• (1 x 5) x 10