Question

Efectueaza:
126x8-86x4=
5000-4x100+3x(87+23)=
(15+27)x(23-17)+14x12=
(47x5+212x9)-314-209=
25x5+114x9+(205x3-525)=
Va rog ajutatima !!

Answer 1

126 × 8 - 86 × 4 =

1008 - 344 = 664

5000 - 4 × 100 + 3 × ( 87 + 23 ) =

5000 - 400 + 3 × 110 =

4600 + 330 = 4930

( 15 + 27 ) × ( 23 - 17 ) + 14 × 12 =

42 × 6 + 168 =

252 + 168 = 420

( 47 × 5 + 212 × 9 ) - 314 - 209 =

( 235 + 1908 ) - 314 - 209 =

2143 - 314 - 209 =

1829 - 209 = 1620

25 × 5 + 114 × 9 + ( 205 × 3 - 525 ) =

125 + 1026 + ( 615 - 525 ) =

1151 + 90 = 1241