Question

afla numerele necunoscute a+4=40.82-b=6.63-c=5.

Answer 1

a + 4 = 40

a = 40 - 4

a = 36 → primul termen al sumei

V: 36 + 4 = 40

_______________________

82 - b = 6

b = 82 - 6

b = 76 → scazatorul

P: 82 - 76 = 6

_____________________

63 - c = 5

c = 63 - 5

c = 58 → scazatorul

V: 63 - 58 = 5

Answer 2

6.63 - c = 5

c = 6.63 - 5

c = 1.63

40.82 - b = 6.63 - 1.63

40.82 - b = 5

b = 40.82 - 5

b = 35.82

a + 4 = 40.82 - 35.82

a + 4 = 5

a = 5 - 4

a = 1

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