脱式计算. 6.5×8+3.5×8-44 | 8.5+(5.6-4.8)×13 | 1.9-1.9×(1.9-1.9) |
×29+×29+29 | 1×÷× | ×101- |
49.5×-(50-)×0.6 | ×+÷+ | ÷[×(1-)] |
897×-37.5%+104×0.375 | [+×(-0.375)]÷ | ++++ |
-(+) |
脱式计算. 6.5×8+3.5×8-44 | 8.5+(5.6-4.8)×13 | 1.9-1.9×(1.9-1.9) |
×29+×29+29 | 1×÷× | ×101- |
49.5×-(50-)×0.6 | ×+÷+ | ÷[×(1-)] |
897×-37.5%+104×0.375 | [+×(-0.375)]÷ | ++++ |
-(+) |