Question

Calculeaza in două moduri:
1
(6+3)x9 =
8x(13-7) =
11
1
(9+5)*10=
(16-7)x 4 =
11​

Answer 1

Explicație pas cu pas:

A. (6+3)×9=9×9=81

(6+3)×9=9×6+9×3=54+27=81

B. 8×(12-7)=8×5=40

8×(12-7)=8×12-8×7=96-56=40

C. (9+5)×10=14×10=140

(9+5)×10=9×10+5×10=90+50=140

D. (16-7)×4=9×4=36

(16-7)×4=4×16-4×7=64-28=36