Question

calculeaza in doua moduri: 5x(5+2) , 8x(6-3) , (2+4)x9 , (5-3)x6

Answer 1

Răspuns:

5×(5+2)=5×7=35

5×(5+2)=5×5+5×2=25+10=35

8×(6-3)=8×3=24

8×(6-3)=8×6-8×3=48-24=24

(2+4)×9=6×9=54

(2+4)×9=2×9+4×9=18+36=54

(5-3)×6=2×6=12

(5-3)×6=5×6-3×6=30-18=12

Answer 2

Răspuns:

1.5x7=35

2.5x5+5x2=25+10=35

1.8x6-8x3=48-24=24

2.8x3=24

1.6x9=53

2.2x9+2x4=18+8=26

1.2x6=12

5x6-6x3=30-18=12