Question

Calculează, grupând convenabil factorii:
8×7×0
7×4×2
2×9×5
3×7×2
5×10×5
10×9×9
5×8×2
4×9×8
2×3×7

AM NEVOIE DE AJUTOR
VA ROG REPEDE DAU coroana si 5 stele ​

Answer 1

Răspuns:

8×7×0 =8×0=8

7×4×2=7×8=56

2×9×5=10×9=90

3×7×2=6×7=42

5×10×5=25×10=250

10×9×9=10×81=810

5×8×2=10×8=80

4×9×8=4×72=288

2×3×7=6×7=42

sper ca asa e corect pt ca na nuj dacă e sigur bine)))

Answer 2

Răspuns:

$7 \times 0 = 0 \\ 7 \times 4 \times 2 = 28 \times 2 = 56 \\ 2 \times 9 \times 5 = 18 \times 5 = 90 \\ 3 \times 7 \times 2 = 21 \times 2 = 42 \\ 5 \times 10 \times 5 = 50 \times 5 = 250$$10 \times 9 \times 9 = 90 \times 9 = 810 \\ 5 \times 8 \times 2 = 40 \times 2 = 80 \\ 4 \times 9 \times 8 = 36 \times 8 = 288 \\ 2 \times 3 \times 7 = 6 \times 7 = 42$