Addition
Subtraction
100
x + 4 = 25
What is 21
100
x - 2 = 6
What is 8
200
a + 13 = 10
What is -3
200
d - 7 = -9
What is -2
300
n + (-8) = -14
What is -6
300
k - (-83) =121
What is 38
400
x + 36 = -100
What is -136
400
x - 327 = -665
What is -338
500
-27 = c + 27
What is -56
500
a - (-163) = -392
What is -555
M
e
n
u