Question

Tolong jawab pakai cara

Answer 1

1]7 + 15 = 22
2]11 +20 = 31 - 10 = 21
3] 15 + 18 = 33 - 12 = 21
4]23 + 17 = 40 - 28 = 12
5]

Answer 2

1.-12+19-(-15) = -12+19+15 = 7+15 = 22
2.11-(-20)+(-10) = 11+20-10 = 30-10 = 20
3.12-(15-(-18)) = 12-(15+18) = 12-33 = -21
4.23-((-17)-28 = 23-(17+28) = 23-45 = -22
5.5-30-(45-(-27)) = 5-30-(45+27) = 5-30-72 = -25-72 = 47.
6.12+4x12-8 = 12+48-8 = 60-8 = 52
7.24+16-5:5 = 24+16-1 = 40-1 = 39
8.121-100+5x4 = 121-100+20 = 21+20 = 41
10.5x6+(4-2) = 30+2 = 32

maaf kalo salah dan no.9 tidak dijawab karena tidak jelas soalnya.