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20 questions
- 7 - 5
-2
2
-12
12
-8 + (+ 10) =
2
-2
18
-18
-5 + (-8) =
3
-3
-13
13
15 . (-4) =
-45
-75
-50
-60
-55 : (-5)
11
-11
5
-5
0 - (-7) =
0
7
-7
1
15 : 0
0
1
niet gedefinieerd in de rationale getallen
-0
-5 . (-9) =
-45
45
50
-50
-121
121
-11
11
3
-3
niet gedefinieerd in Q
14 + 5a + a - 8 =
5a + 6
5a + 22
6a + 6
5a + 22
-3 . (x + 4) =
-3x - 12
-3x + 4
x - 12
-x - 12
2b + 5 - (b - 10) =
b - 5
3b + 5
b - 15
b + 15
x + x + x =
x
3x
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