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numarul 5 va rog va dau cr

Numarul 5 Va Rog Va Dau Cr class=

Răspuns :

(1+8)x3=1x3+8x3
(7+2)x4=7x4+2x4
6x(5+5)=6x5+6x5
(1+8)×3=1×3+8×3
(7+2)×4=7×4+2×4
6×(5+5)=6×5+6×5
3×7=3×(2+7)
2×9=(6-4)×9
8+8=8+(10-2)sau 8×8=8×(10-2)