Question

Efectueaza in doua moduri, iar:
(3+2+4)×10
(5+1+2)×9
10×(4+3-2)

Answer 1

Sper că te-am ajutat

Answer 2

( 3 + 2 + 4 ) × 10 = 9 × 10 = 90
( 3 + 2 + 4 ) × 10 = 3×10 + 2×10 + 4×10 = 90

( 5 + 1 + 2 ) ×9 = 8 × 9 = 72
( 5+1 + 2 ) ×9 = 5×9 + 1 × 9 + 2 × 9 = 45 + 9 + 18 = 72

10 × ( 4 + 3 - 2 ) = 10 ×( 7 - 2 ) = 10 ×5 = 50
10 × ( 4 + 3 - 2 ) = 10 × 4 + 10 × 3 - 10 ×2 = 40 + 30 - 20 = 70 - 20 = 50