Show:
simple +
simple -
harder +
harder -
multiply and divide
100
X = 9
What is 5 +4
100
X = 8
100
X = 234
100
X = 45
100
X = 45
200
X = 7
200
X = 15
200
X = 491
200
X = 23
200
X = 99
300
X = 12
300
X = 43
300
X = 902
300
X = 305
300
x = 120
400
X = 39
400
x = 100
400
X = 1, 200
400
X = 725
400
X = 48
500
X = 93
500
x = 219
500
X = 1304
500
X = 921
500
X = 12