7b - Equations

An equation is shown. 

n + 11 = 125 + 15 

What is the value of the missing number, n,  in the given equation?

• 140

•  129

• 119

•  114

An equation is shown. 

48 × 2 = ⬜ × 32

Determine the missing number that makes the equation true

An equation is shown. 

72 ÷ 8 = t × 9

Determine the missing value, t, to make the equation a true statement 

t = _

42 + n = 48 - n

Determine the missing number, n, that makes the equation true.

n = _

Select the equation that is true.

• 86 + 38 = 124

• 86 - 38 = 48

• 86 - 38 = 52

• 86 + 38 = 114

Sergio has 8 Xbox games. Sergio has twice as many (or two times as many) Xbox games as Gavin.

Which equation represents how many Xbox games Gavin has?

• S = 8

• G = 8 x 2

• 8 = 2 x G

• 8 = 2 + G

• G - 2 + 8

Which word problem has a solution of 9 x 3 = 27?

• Jan is 9 times older than her cousin Josh who is 3 years old. How old is Jan?
• Katrina buys 9 cupcakes for twenty seven cents each.  How much total money did Katrina spend?
• Don saves for 9 weeks to buy 3 games. How many weeks did Don save for each game?
• Sam spends $9 on a book and $3 on a notebook.  How much total money does Sam spend?

18+5 = ___+9

• 23

• 32

• 14

• 9

___+9 = 12+6

• 18

• 27

• 9

• 3

12 x 4 + 13 + 20 = 34 + r

• r = 81

• r = 82

• r = 49

• r = 47