Question

Calculează: a) 2457 +(3428 – 209 x 6) = (420 x 10+ 15:1) - 963 = b) 46 x (3502 - 2948) = 40:4+ (57 x 12 - 436) =​

Answer 1

Răspuns:

a)

2457 + (3428 – 209×6) = 2457 + (3428 – 1254) = 2457 + 2174 = 4631

(420×10 + 15:1) - 963 = (4200 + 15) - 963 = 4215 - 963 = 3252

b)

46 × (3502 - 2948) = 46 × 554 = 25484

40 : 4 + (57×12 - 436) =​ 10 + (684 - 436) = 10 + 248 = 258