Addition
Subtraction
Multiplication
Division
Decimals
100
x + 4 = 25
x = 21
100
x - 2 = 6
x = 8
100
9x = 27
x = 3
100
y / 6 = 2
y = 12
100
m + 2.4 = 3.7
m = 1.3
200
a + 13 = 25
a = 12
200
d - 7 = 9
d = 16
200
7x = 63
x = 9
200
x / 4 = 14
x = 56
200
x - 66.09 = 102.8
x = 168.89
300
58 + m = 77
m = 19
300
k - 83 = 121
k = 38
300
5e = 400
e = 80
300
x / 6 = 6
x = 36
300
5.6 = 0.8x
x = 7
400
l + 17 = 25
l = 8
400
x - 327 = 665
x = 992
400
11x = 275
x = 25
400
28 = a / 13
a = 364
400
c / 0.29 = 5.5
c = 1.595
500
555 + w = 765
w = 210
500
a - 163 = 392
a = 555
500
21y = 756
y = 36
500
80 = x / 15
x = 1200
500
0.12 = y / 0.12
y = 0.0144
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