Question

Completeaza cu numerele corespunzatoare , pentru a obtine egalitatile :

7 × ( 72 + 32 + 17 ) = 7 × _ _ + _ × _ _ + _ × 17

9 × 13 + 9 × 18 + 9 × 36 = 9 × ( _ _ + 18 + _ _ )

_ × 11 + _ × 9 = _ × ( 11 + 9 )

( 38 + _ _ + 29) × 10 = 38 × _ _ + 18 × 10 + _ _ _ _

8 × ( 87 - 28 ) = 8 × _ _ - _ _ × _ _

_ × ( 68 - 24 - _ _ ) = 7 × _ _ - 7 × _ _ - _ _ × 18


Liniile sunt casute goale in carte .

Answer 1

7×72+7×32+7×17 9×(13+18+36) 2×11+2×9=2×(16+9) (38+18+29)×10=38×10+18×10+29×10 8×87-8×28 7×(68-24-18)=7×68-7×24-7×18