Заполните таблицу.
| a | b | a + b | a − b | ab | a : b |
|---|---|---|---|---|---|
| −18 | −6 | ||||
| −12 | 3 | ||||
| 15 | −5 | ||||
| −8 | 16 | ||||
| −4 | −4 | ||||
| 9 | −9 |
a + b
1) −18 + (−6) = −24
2) −12 + 3 = −9
3) 15 + (−5) = 15 − 5 = 10
4) −8 + 16 = 8
5) −4 + (−4) = −8
6) 9 + (−9) = 9 − 9 = 0
a − b
1) −18 − (−6) = −18 + 6 = −12
2) −12 − 3 = −15
3) 15 − (−5) = 15 + 5 = 20
4) −8 − 16 = −24
5) −4 − (−4) = −4 + 4 = 0
6) 9 − (−9) = 9 + 9 = 18
ab
1) −18 * (−6) = 18 * 6 = 108
2) −12 * 3 = −(12 * 3) = −36
3) 15 * (−5) = −(15 * 5) = −75
4) −8 * 16 = −(8 * 16) = −128
5) −4 * (−4) = 4 * 4 = 16
6) 9 * (−9) = −(9 * 9) = −81
a : b
1) −18 : (−6) = 18 : 6 = 3
2) −12 : 3 = −(12 : 3) = −4
3) 15 : (−5) = −(15 : 5) = −3
4) −8 : 16 = −(8 : 16) = −0,5
5) −4 : (−4) = 4 : 4 = 1
6) 9 : (−9) = −(9 : 9) = −1
Ответ:
| a | b | a + b | a − b | ab | a : b |
|---|---|---|---|---|---|
| −18 | −6 | −24 | −12 | 108 | 3 |
| −12 | 3 | −9 | −15 | −36 | −4 |
| 15 | −5 | 10 | 20 | −75 | −3 |
| −8 | 16 | 8 | −24 | −128 | −0,5 |
| −4 | −4 | −8 | 0 | 16 | 1 |
| 9 | −9 | 0 | 18 | −81 | −1 |
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