Alegbraic expressions CBA review

A family spent $95 at the fair.

They spent $35 on tickets and $48 on food.

They spent the rest of the money on parking.  

Which equation can be used to find p, the amount of money in dollars the family spent on parking?

•  95 = 35 + 48 - p

• 95 = p + 48 + 35

•  95 = p + 48 - 35

•  95 = 48 - 35 - p

After adding $70 to her bank account, Keesha had a total of $126.  Which number sentence could be used to correctly represent how much money Keesha had in her account before she added $70?

• 126 - 70 = m

• M - 126 = 70

• 126 + 70 = m

•  70 - m = 126

Rebecca is hiking to Harrows Point.  She knows Harrows Point is 11 miles away.  Along the way she will stop at Lookout Point, which is 3.2 miles away.  Which equation shows the distance between Lookout Point and Harrows Point?

• 3.2 + x = 11

• 11 + x = 3.2

• 11 + 3.2 = x

• 3.2 - x = 11

Michelle has 95 stickers and gives some to her sister. She has 53 stickers left. She uses the equation 95 − x = 53 to find out the number of stickers she gave her sister. How many stickers did she give her sister?

• 53

• 84

• 42

• 148

Zach has 15 math problems to do for homework. He has completed p problems so far. He has 9 left to do. Which equation can be used to find the number of problems he has completed?

•  p - 9 = 15

• p + 9 = 15

• 15 + p = 9

•  9 - p = 15

Kim has 121 pennies. Sheila has 17 times as many pennies as Kim. Which equation represents p, the number of pennies Sheila has?

•  121 × 17 = p

• 121 + 121 = p

• 121 + 17 = p

• 121 × 8 = p

• 73

• 61

• 95

• 35

Tonn bought a new stereo for $740.  He put down a $100 deposit and must pay off the rest of what he owes in 8 equal monthly payments.  Let m represent the amount of each monthly payment.  Which of the following equations can be used to find m?

•  m = (740 ÷ 8) + 100

•  m = (740 - 100) ÷ 8

• m = (740 ÷ 8) - 100

•  m = (740 - 100) x 8

Ms. Felder took $146 out of the bank.  She spent $59 at the store.  She gave the remaining amount equally to her three children for allowance.  Use the equation below to find a, the amount of money each child received.

(146 - 59) ÷ 3 = a

• 31

• 29

• 37

• 83

Ms. Robinson’s class is divided into 5 groups for stations.  She gives each group 103 pencils at the beginning of the school year to use throughout the year.  During January, each of the 5 groups had 40 pencils left.  Use the equation below to find s, the total number of pencils the class used from the beginning of the school year until January.

s = (5 x 103) - (5 x 40)

• 515

• 200

• 315

• 143