Răspuns:
a) 1200
b) 50500
c) 702000
d) 478000
Explicație pas cu pas:
a)
12 × 13 + 12 × 15 + 12 × 72 =
12 × (13 + 15 + 72) =
12 × 100 =
1200
b)
125 × 234 - 125 × 28 + 125 × 198 =
125 × (234 - 28 + 198) =
125 × 404 =
50500
c)
702 × 256 - 702 × 55 + 702 × 799 =
702 × (256 - 55 + 799) =
702 × 1000 =
702000
d)
1000 × 372 + 259 × 1000 - 153 × 1000 =
1000 × (372 + 259 - 153) =
1000 × 478 =
478000
