Question

Efectuează în două moduri. 5x(5+2) 8x (6-3) (2+4) × 9 (5-3) ×6 (3+2+4) × 10 (5+1+2) × 9 8x (7-3) 10 × (4+3-2)​

Answer 1

5x(5+2)

I. 5x7=35

II. 5x5+2=35,

8x(6-3)

I. 8x3=24,

II. 8x6-3=24,

(2+4)x9

I.8x9=72,

II. 2+4x9=72

(5-3)X6

I. 2x6=12,

II. 5-3x6=12.

(3+2+4)x10

I. 9x10=90,

II. 3+2+4x10=90,

(5+1+2)x9

I. 8x9=72,

II. 5+1+2x9=72,

8x(7-3)

I. 8x4=32,

II. 8x7-3=32,

10x(4+3-2)

I. 10x5=50,

II. 10x4+3-2=50.

Simplu :))