(1)960-720÷8×9 (2)12×(736-656÷16) (3)78×101 (4)400÷25÷4 (5)927÷[630÷(34+36)] (6)125×88 (7)230×24+240×77 (8)46×101-146 (9)(841-41)÷25×4
(1)960-720÷8×9 =960-90×9 =150 | (2)12×(736-656÷16) =12×(736-41) =8340 | (3)78×101 =7800+78 =7878 |
(4)400÷25÷4 | (5)927÷[630÷(34+36)] =927÷[630÷70] =103 | (6)125×88 =125×8×11 =11000 |
(7)230×24+240×77 =240×(23+77) =24000 | (8)46×101-146 =45×100 =4500 | (9)(841-41)÷25×4 =800÷25×4 =128 |