Question

помогите решить математека 2 класс

Answer 1

d = 15

58 - 15 + 20 = 63

60 + 15 - 28 = 47

(30 + 12) - 15 = 27

d = 10

58 - 10 + 20 = 68

60 + 10 - 28 = 42

(30 + 12) - 10 = 32

d = 25

58 - 25 + 20 = 53

60 + 25 - 28 = 57

(30 + 12) - 25 = 17

d = 8

58 - 8 + 20 = 70

60 + 8 - 28 = 40

(30 + 12) - 8 = 34

d = 0

58 - 0 + 20 = 0

60 + 0 - 28 = 0

(30 + 12) - 0 = 0