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c) 3 x 4 + 4 x 6 =
4 x 9 +2 x 9 =
3 x 7 - 4 x 4 =
4 x 5 - 3 x 2 =​


Răspuns :

• 3 x 4 + 4 x 6 = 12 + 24 = 36

• 4 x 9 + 2 x 9 = 36 + 18 = 54

• 3 x 7 - 4 x 4 = 21 - 16 = 5

• 4 x 5 - 3 x 2 = 20 - 6 = 14

Răspuns:

3×4+4×6=12+24=36

4×9+2×9=36+18=54

3×7-4×4=21-16=5

4×5-3×2=20-6=14