add/subtract
multiply/divide
100
30+40
what is 70
100
4x6=
what is 24
200
26-45
what is -19
200
-15/8
what is-1.875
300
-19+542
what is 523
300
-16x12
what is -192
400
61-(-91)
what is 152
400
-666/100
what is -6.66
500
-162-78
what is -240
500
-76/50=
what is -1.52
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