Add, same sign
Add, different signs
Subtract
Multiply
Divide
100
10 + 12
22
100
-2 + 2
0
100
10 - -3
= 10 + 3 = 13
100
2・7
14
100
12 ÷ 2
6
200
250 + 75
325
200
-3 + 7
4
200
-3 - 3
= -3 + -3 = -6
200
2・-10
-20
200
-10 ÷ -2
5
300
-2 + -4
-6
300
16 + -2
14
300
-20 - -10
= -20 + 10 = -10
300
5(-5)
-25
300
20 ÷ -5
-4
400
-40 + -30
-70
400
10 + -22
-12
400
20 - 32
= 20 + -32 = -12
400
-8・-4
32
400
-99 ÷ 11
-9
500
-42 + -7
-49
500
-125 + 250
125
500
-50 - 40 =
= -50 + -40 = -90
500
-4(-2・3)
= -4(-6) = 24
500
-36 ÷ (-3・3)
= -36 ÷ -9 = 4
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