Question

59. Заменить суммой и вычислить: 1) -1 – 5;7) -7 - 13;2) 4 - (-2);8) -9 - (-5);3) -5 - 7;9) 13 - (-15);4) -12 - (-15);10) 16 – 18;5) 10 – 16;11) 17 - (-7);6) 28 - (-3); 12) -5 - (-20);13) 0 – (-2);14) 2 – 0;15) -6 - 0;16) 0 – 12;17) 18 – 10;18) 18 - (-10).​

Answer 1

Ответ:

1) -1 – 5;=-(1+5)=-6

7) -7 - 13 -(7+13)=-20

2) 4 - (-2)=4+2=6

8) -9 - (-5)=-(9+5)=-14

3) -5 - 7=-(5+7)=-12

9) 13 - (-15);=13+15=28

4) -12 - (-15)=-(12+15)=-27

10) 16 – 18=-2

5) 10 – 16=-6

11) 17 - (-7)=17+7=24

6) 28 - (-3)=28+3=31

12) -5 - (-20)=-(5+20)=-25

13) 0 – (-2);=0+2=2

14) 2 – 0=2

15) -6 - 0=-(6+0)=-6

16) 0 – 12=-12

17) 18 – 10=8

18) 18 - (-10)=18+10=28

Пошаговое объяснение:

Answer 2

To replace each subtraction operation with addition and then calculate the results, you need to remember that subtracting a negative number is the same as adding its positive counterpart. For example, x - (-y) is equivalent to x + y.

Let's perform the calculations:

1. -1 - 5 = -1 + (-5) = -6
2. -7 - 13 = -7 + (-13) = -20
3. 4 - (-2) = 4 + 2 = 6
4. -9 - (-5) = -9 + 5 = -4
5. -5 - 7 = -5 + (-7) = -12
6. 13 - (-15) = 13 + 15 = 28
7. -12 - (-15) = -12 + 15 = 3
8. 16 - 18 = 16 + (-18) = -2
9. 10 - 16 = 10 + (-16) = -6
10. 17 - (-7) = 17 + 7 = 24
11. 28 - (-3) = 28 + 3 = 31
12. -5 - (-20) = -5 + 20 = 15
13. 0 - (-2) = 0 + 2 = 2
14. 2 - 0 = 2 + 0 = 2
15. -6 - 0 = -6 + 0 = -6
16. 0 - 12 = 0 + (-12) = -12
17. 18 - 10 = 18 + (-10) = 8
18. 18 - (-10) = 18 + 10 = 28

These are the results after replacing subtraction with addition.