Question

2. Să se efectueze operaţiile, după model:
4x6x2-(4x2) x 6-8 x 6-48
9x3x3=
8x3x2=
1x9x2=
2x6x3=
3x7x3=
2x6x2=

Answer 1

Răspuns:

9×3×3=(9×3)×3=27×3=81

8×3×2=(8×2)×3=16×3=48

1×9×2=(1×2)×9=2×9=18

2×6×3=(2×3)×6=6×6=36

3×7×3=(3×3)×7=9×7=63

2×6×2=(2×2)×6=4×6=24