Question

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Answer 1

Rezolvare

B)

64 +(81 :9) =5 ×8 +42

64 +9 =40 +42

73 =82 (F)

C)

2 ×105 - 105 =0 +315 :3

210 - 105 =0 +105

105 =105 (A)

Răspuns :b) F, c) A

Answer 2

Explicație pas cu pas:

b)64+(81:9)=5×8+42

64+9=40+42

73=82(fals)

c)2×105-105=0+315:3

210-105=0+105

105=105(adevărat)