Question

Transforma enunțurile de mai jos in exerciții cu paranteze 1)4×4+4×1 2)8×6+2×6 = 3)8×7-8×3= 4)9×9-7×9​

Answer 1

(4x4+4)x1=20

(8x6)+(2x6)=48+12=60

(8x7)-(8x3)=56-24=32

(9x9)-(7x9)=81-63=18

Answer 2

Răspuns:

Explicație pas cu pas:

1)  4 × 4 + 4 × 1 = 4 × ( 4 + 1 ) = 4 × 5 = 20

2)   8 × 6 + 2 × 6 = 6 × ( 8 + 2 ) = 6 × 10 = 60

3)   8 × 7 - 8 × 3 = 8 × ( 7 - 3 ) = 8 × 4 = 32

4)  9 × 9 - 7 × 9 = 9 × ( 9 - 7 ) = 9 × 2 = 18

→ am aplicat distributivitatea inmultirii fata de adunare si scadere, dand factor comun