Fractions
Ratio and Proportions
Solving Equations
Mental Math
100

Convert this fraction to a Decimal

111/100

1.11

100

Of the students in Dina's grade, 3 students have a pet and the other 42 students do not. What is the ratio of the number of students who do not have a pet to the number of students who have a pet?

14 to 1

100

Solve: 2x + 2 = 18

x = 8

100

865 + 17 + 49 =

931

200

Convert this decimal to a Fraction

0.45

9/20

200

Zack and Kenny are waiters in a restaurant. The total amount of tips they receive at the end of the week is $144. Zack worked 5 nights and Kenny worked 4 nights. They decide to split the tips by the ratio of the nights they worked. How much do they get each?

Zack gets $80, Kenny gets $64

200

Simplify: 22p - 7p + 19 - 15 - 12


15p – 8

200

6-3-54 =

-51

300

Multiply this fraction

3/4  x  5/8 

15/32

300

A model car is made to a scale of 1:20. The model is 12cm wide. How wide is the real-life car?

240 cm or 2.4m

300

3x + 3 - 2x = 21

x = 18

300

10 + 15 + ___ = 241      

216

400

12 divided by 3/9

36

400

132g of coffee are needed for 12 people. How many g are needed for 17 people?

187g

400

Solve: 21 = x - 12

x = 33

400

5 x 3 x 9 =  

135

500

Convert this fraction to a Percentage

5/8

62.5%

500

y is directly proportional to x. Given that y=25 when x=5, find the equation. Then solve for y when x=3.

y=5x , y=15

500

Solve the equation: 7(2x + 3)= 31

x = 5/7

500

What is 57.65 to 2 significant figures?

58