Addition  Subtraction  Multiplication  Division  Decimals 

100What is 21
x + 4 = 25

100What is 8
x  2 = 6

100What is 3
9x = 27

100What is 12
y/6 = 2

100What is 2
m + 3.7 = 5.7

200What is 3
a + 13 = 16

200What is 16
d  7 = 9

200What is 9
7x = 63

200What is 56
x/4 = 14

200What is 2.1?
2.2 + x = 4.3

300What is 8
n + 6 = 14

300What is 204
k  83 =121

300What is 80
5e = 400

300What is 36
x/6 = 6

300What is .40
5.6 + x = 6

400What is 64
x + 36 = 100

400What is 338
x + 327 = 665

400What is 25
11x = 275

400What is 30
x/3 = 10

400What is .6
1.6  x = 1

500What is 0
27 = c + 27

500What is 7
n + 385 = 392

500What is 36
21y = 756

500What is 28
x/4=7

500What is 0.40
0.90 + m = 1.30
