直接写得数.0.28+0.2= 0.6+0.3= 8.8﹣0.5=0.88﹣0.08= 1﹣0.69= 3.4+5.6=0.38+5.52= 5﹣3.4=
用你最喜欢的方法计算. 1.25×0.25×32 (0.25+)÷(﹣)×0.25+× [(8.7﹣7.5)÷0.2]×0.15 3.75×58.3÷58.3×6.54÷3.75÷65.4 56×(+﹣)
简算下列各题 548+468+529.14﹣1.34﹣4.5777+2.7+2.3+23 3200÷4÷25125×32×252009×95+5×2009.
0.4×99+0.4.
简便计算. 44×25204×15365﹣73﹣27(25.8+7.5)+2.5.
运用运算定律简算: (1)(+)×24(2)+×