Question

Calculați folosind proprietatile inmultirii 8*(30+20); 24*32 +24*18 -24*10​

Answer 1

8•(30+20)= 8•50= 400 sau 8•30+8•20= 240+160= 400.

24•32+ 24•18- 24•10= 24•(32+18-10)= 24•40= 960

Answer 2

Răspuns:

Explicație pas cu pas:

8 × ( 30 + 20 ) = 8 × 50 = 400

= 8 × 30 + 8 × 20 = 240 + 160 = 400 → ( am aplicat distributivitatea inmultirii)

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24 × 32 + 24 × 18 - 24 × 10 = 24 × ( 32 + 18 - 10 ) = 24 × 40 = 960

→ am dat factor comun pe 24