Răspuns:
Explicație pas cu pas:
12 × 2 = 24
36 × 2 = 36 + 36 = 72
40 × 2 = 40 + 40 = 80
20 × 2 = 20 + 20 = 40
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16 : 4 = 4
88 : 4 = 22
40 : 4 = 10
44 : 4 = 11
20 : 4 = 5
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16 × 4 = 64
8 × 4 = 32
12 × 4 = 48
20 × 4 = 80
10 × 4 = 40
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20 × 10 = 200
40 × 10 = 400
60 × 10 = 600
50 × 10 = 500
70 × 10 = 700