- 能简算的要简算。(1)241×690÷339÷345×678÷241(2)6﹣0.65+5×99(3)356×84﹣4×356﹣80÷(4)[3.75﹣(0.2+)×4]÷13.5%
- 计算,能简算的要简算。(1)(+-)×48(2)-÷×0.5(3)5.84×1.36+13.6×0.316+1.36
- (1)(2)15.28-3.99-9.01(3)(4)25×125×32
- 脱式计算,能简算的要简算。(1)60÷15+2.5×1.9(2)×[÷(﹣)](3)++﹣(4)0.65×8.7+6.5×0.23﹣0.65(5)
- 直接写得数。170×30=1-0.375=0.5÷0.25==×24=3.14×5==
- 脱式计算。(1)5.4×5.08+3.6×5.08+5.08(2)0.25×588.5×400(3)[9-(4.68+ 1.42)-1.9]÷0.125(4)[(6.1 - 4.6)× 0.8-1] ...
- 计算。(能简算的要简算)(1)2.58×1.9(2)10.8÷1.2(3)4.5÷0.5÷9(4)0.32×1.25×0.25
- 计算:5.6×69.32+138.64×0.05+693.2×0.43
- (8.74+8.74+8.74+8.74)×2.5,下列解法中, 既正确又简便的是[ ]A. (8.74×2+8.74×2)×2.5B.8.74×(2.5×4)C.8.74×(2.5+4...
- 5.83+2.98的简便算法是[ ]A.5.83 +3 +0.02B.5.83 +3 -0.02C.2.98+5.83
- 用简便方法计算:54÷8÷1.25
- 用简便方法计算:64÷1.25÷3.2÷0.8
- 用简便方法计算:×4+3×-5÷
- 用简便方法计算:6.19-0.84-2.19-2.16
- 用简便方法计算:1.7×9.9+0.17