| .脱式计算,能简算的要简算。 | ||||||
|
| (1)[274-(38+107)]×56 =[274-145]×56 =7224 |
(2)(736÷16+83)×27 =(46+83)×27 =3483 |
(3)(87+16)×(87-16) =103×71 =7313 |
| (4)320÷(18+14)×700 =320÷32×700 =7000 |
(5)1848-800÷16×34 =1848-1700 =148 |
(6)54×99 =5400-54 =5346 |
关注公众号回复:奥数答案
即可免费获得密码查看答案
