竖式计算,前两题要验算.①114×6 ②1482÷5 ③380×24 ④358÷9.
用简便方法计算下面各题:25+96+35+4; 4×13×25×5; 25×32×15;918﹣233﹣167﹣518;38×14+162×14; 7000÷25÷4.
用简便方法计算(1)0.13×+×13%(2)18×25%+68×25%+14÷4.
用简便方法计算8.16+5.49+2.84+4.51 1.29+3.7+2.71+6.312.98﹣(6.37+3.98)36.9﹣10.47+3.1﹣10.53.
用简便方法计算下面各题.18.5×30 34.5﹣8.9﹣9.9﹣10.9 (8﹣0.8)×125 3.5×1.02+35×0.098.
68×34+68×67﹣68.