- 一个数的2倍加上1.2与1.5的积,和是13.4,这个数是多少?(列方程求解)
- 计算下面各题.7.2÷1.6+1.3×0.434÷[8.5×(32÷0.8)](4.8-1.92÷0.64)×4.5[2.86-1.2÷(6-4.8)]÷0.3.
- 计算下面各题63×1.25×0.83.5×2.5-0.5×3.515.8÷2.5÷47.65-0.65×4.
- 列式计算①0.4与2.5的积加上4除2的商,和是多少?②甲数是5.6,比乙数的3倍少0.4,乙数是多少?
- 7.2+2.8=0.9÷0.01=3.5+7.6=3×0.2×0.5=0.96÷0.3=1.5×0.4=7÷0.25=2.5×0.7×0.8=8-2.5=16÷1.6=5.6×1.01=8×(2.5+0.25)=0.36+0.64...
- 计算,能简算的要简算10÷0.2÷2.58.4÷0.21÷0.51.25×3.2×0.2514.5×10214.64+3.7×2.83.5×0.7+7.5×0.7-0.7.
- 5除1.2与2.5的和,商是多少?正确的算式是( ) A.5÷1.2+2.5 B.5÷(1.2+2.5) C.(1.2+2.5)÷5 D.1.2÷5+2.5
- 5.6与0.7的和,乘以它们的差,积是多少?
- 计算下面各题,能简算的要简算.(1)(6.8-5.4)×2.75-0.9(2)3.8×5.6+4.4×3.8(3)1.24×8.3+8.3×1.76(4)88×0.25×9.
- (0.1÷0.1-0.1×0.1)÷0.1正确的得数是( ) A.0 B.1 C.9.9 D.0.9
- 脱式计算,能简算的必须简算.12.5×0.25×3204.57×0.36+4.57×0.64103×2.478.6÷12.5÷0.848×0.25×515.72÷(3.8-3.2×0.75)
- 从2里面连续减去( )个0.01,还剩下0.5. A.15 B.150 C.1.5 D.200
- 脱式计算(能简算的药简算)12.5×0.4×2.5×80.87×6.6+8.7×0.349.07-22.78÷3.4.
- 从21.3与8.75的和里减去0.75,结果是多少?
- 2.535除以13个6.5的和,结果是多少?