Question

6.Calculati: a)(12×6+7×20)×10 b)(23×8-16×3)×10 c)(15×6-12×7)×100 d)100×(36×3+15×5)​

Answer 1

am atasat poza cu rezolvarile

Answer 2

12×6= 72 7×20=140 facem adunarea 72+140 =212 apoi ×10=2120 la punctul b facem inmultirile 23×8=184 si 16 ×3=48apoi facem scaderea 184-48=136 ×10=1360 ,la punctul c :15×6=90 12×7=84 ;90-84=6 ×100 =600; si punctul d rezolvam intai paranteza 36×3=108 si 15×5=75 108+75=183 ;100×183=18.300