六年级数学计算题训练计算下面各题:(1–×)÷1271275823÷×725÷(–)+–65971112–(19+512)12÷(1–37)用简便方法计算:(1–157)×70(8+3–2943)×724–2÷8515–143861534425×34–150(56–34)÷(23+411159)5×[3÷(2+6)][(1–1×2)÷7[(1–3)×265955]÷497×53965×8+35×215×347+15×772×(1–1+1)(5+123413)×9+41330×(11192–3+6)48×(111313–2+4)(5+4)×60–27一/178661115÷9+×24×(+)5––925256866827271531×(9+)–÷+×5––93838664281724541113+÷+2–×–+÷+9383585642430×(+–)10÷10直接写出得数
125=555×13-111×15=25×0
25=125-25+75=999×15=10-3
25+9÷0
125=1625121413110+24÷12×+5
2×+1÷3125341155×(200311717-)=×2005=10-(4+3)-0
75=2004334413413解方程:12×(–+)1213141435+×+5986二/171835711+X=2X–=X+=9951810123X–1
1X+–=21175
5x–3x=1
751225X=15×35X×(1+14)=25X×4×158=10X×910=24×18X3=103218X×(13136+8)=12X×2=8721X×2=8×334X×13×35=47X–4X=21三/17(1–589)X=1515÷X=56X×3×245=18X×217=18×314×x+15×45=12