计算下面各题,怎样简便就怎样算.284+28+116180+74+27+126+120+732×l25×8×5125×897×835×10133×46+46×17973×5×268×99.
计算题: (1)0.125×7.37+×3.63﹣12.5×0.1 (2)1×(2﹣)+÷ (3) (4):
①27.055﹣1.02﹣8.99 ②÷(﹣) ③0.38×8.17+3.8×0.383﹣0.76 ④[]÷7 ⑤+[].
脱式计算,能简算的要简算. (1)25×3.2×125 (2) (3)÷ (4)×20+8÷ (5)5×(﹣)÷ (6)42÷(+)
简便运算,写出计算过程. ①25×0.32×1.25②0.37×79+3.7×2.1③2011÷2011+ ④++++⑤(﹣)×12⑥1000+999×999.
用简便方法计算 5﹣÷﹣4.9×6.4+14×0.36﹣6.4×3.5.