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Addition
Subtraction
Multiplication
Division
Decimals
100
x + 4 = 25
What is 21
100
x - 2 = 6
What is 8
100
9x = 27
What is 3
100
y/6 = 2
What is 12
100
m + 3.7 = 5
What is 1.3
200
a + 10 = 13
What is 3
200
d - 7 = 9
What is 16
200
7x = 63
What is 9
200
x/4 = 14
What is 56
200
x + 66.09 = 102.8
What is 36.71
300
n + 8 = 14
What is 6
300
k - 83 =121
What is 204
300
5e = 400
What is 80
300
x/6 = 6
What is 36
300
5.6 = 0.8x
What is 7
400
x + 36 = 172
What is 136
400
x - 327 = 665
What is 992
400
11x = 275
What is 25
400
28 = a/13
What is 364
400
c - 0.29 = 5.5
What is 5.79
500
27 = 27 + c
What is 0
500
a - 400 = 392
What is 792
500
21y = 756
What is 36
500
80 = x/15
What is 1200
500
0.12 = y/1
What is 0.12