Operations with Rational Numbers

Jon borrows $8.75 from his friend to pay for snacks, and $13.50 from his sister to go to the movies. How much money does he need to repay?

• $21.25

• $4.75

• $22.25

• $16.25

Maria is making a pie and a cake. The pie will use $1\frac{1}{2}$  cups of flour and the cake uses  $2\frac{2}{3}$  cups of flour. If she has 5 cups of flour, how much will she have left over? 

Which 2 operations should you use?

• Add and Subtract

• Add and Multiply

• Multiply and Subtract

• Add and Divide

On Monday, the bank balance was $16. On Tuesday, it was -$45. How much did the bank account change?

• $21

• $29

• $61

• $16

Jon's weight loss for each week of the month is 3.5 lbs, 5 lbs, and 3 lbs. He gained 2.5 lbs the last week. If Jon originally weighted 163 lbs, how much does he weigh now?

• 154 lbs

• 164 lbs

• 144 lbs

• 131 lbs

If the sides of a triangle are $\frac{1}{2},\ \frac{1}{2},\ and\ \frac{3}{4}$  , determine the perimeter.

•  $\frac{5}{10}$  

•  $\frac{5}{4}$  

•  $\frac{7}{4}$  

•  $\frac{5}{8}$  

 There are two couches against a wall. If one takes up $\frac{5}{9}$  of the wall and the other takes up  $\frac{1}{5}$  of the wall, how much of the wall is covered by couches?

•  $\frac{10}{3}$  

•  $\frac{6}{45}$  

•  $\frac{3}{7}$  

•  $\frac{34}{45}$  

Jim purchased a teddy bear for $14.50 and a board game for $9.99 for his nephew's birthday. He decided to get the same items for his 2 other nephews. How much did Jim spend in all?

Which two operations should you use?

• Add and Subtract

• Add and Multiply

• Multiply and Subtract

• Add and Divide

The high temperature today was 62 degrees. At nighttime, the temperature will drop 40 degrees. By 4 am the temperature will drop an additional 40 degrees. What is the temperature at 4 am?

• -18 degrees

• 18 degrees

• 22 degrees

• -8 degrees

Henry earned $115 last weekend at his job. He earned $225 working the week before. He then bought a guitar for $229. How much money does Henry have left over?

Which 2 operations should you use?

• Add and Subtract

• Add and Multiply

• Multiply and Subtract

• Add and Divide

There is $\frac{3}{4}$ of a pie. If four friends split this equally, how much of the total pie does each person get? 

•  $\frac{1}{4}$  

•  $\frac{3}{16}$  

•  $\frac{1}{3}$  

•  $\frac{1}{2}$