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