人教版七年级上册数学有理数计算题分类及混合运算练习题(200题)

.七年级数学有理数计算题分类及混合运算练习题（200题）有理数加法1、（－9）+（－13）2、（－12）+273、（－28）+（－34）4、67+（－92）5、(－27.8)+43.96、（－23）+7+（－152）+65原则一：所有正数求和，所有负数求和，最后计算两个数的差，取绝对值较大的数的符号。7、|+（－）|=8、（－）+|―|=9、38+（－22）+（+62）+（－78）=10、（－8）+（－10）+2+（－1）11、（－）+0+（+）+（－）+（－）12、（－8）+47+18+（－27）13、（－5）+21+（－95）+2914、（－8.25）+8.25+（－0.25）+（－5.75）+（－7.5）15、6+（－7）+（－9）+216、72+65+（-105）+（－28）17、（－23）+|－63|+|－37|+（－77）18、19+（－195）+4718、（+18）+（－32）+（－16）+（+26）20、（－0.8）+（－1.2）+（－0.6）+（－2.4）21、（－8）+（－3）+2+（－）+1222、5+（－5）+4+（－）23、（-6.37）+（－3）+6.37+2.75原则二：凑整，0.25+0.75=1+=10.25+=1抵消：和为零有理数减法7－9=―7―9=0－(－9)=(－25)－(－13)=8.2―(―6.3)(－3)－5(－12.5)－(－7.5)===(－26)―(－12)―12―18―1―(－)―(+)(－)―（－）―=－44=－2=(－20)－(+5)－(－5)－(－12)(－23)―(－59)―(－3.5)|－32|―(－12)―72―(－5)=－8=39.5=－23（+）―（－）―（－）―（－）―3―（－3.2）―7（+）―（－）―=―=－10=0（－0.5）－（－3）＋6.75－5（+6.1）―（－4.3）―（－2.1）―5.1=4=7.4（－）―(－1)―(－1)―(+1.75)(－3)―(－2)―(－1)―(－1.75)=1=2.5－8－5＋4－3－4++(－)―=－13=－70.5+（－）－（－2.75）+（+4.3）－（－4）+（－2.3）－（+4）=3.5=2原则三：结果的形式要与题目中数的形式保持一致。如确定是分数还是小数，分数必须是带分数或真分数，不得是假分数，过程中无所谓。有理数乘法（－9）×（－）×（－0.26）（－2）×31×（－0.5）=－6=0.04=31×（－5）＋×（－13）（－4）×（－10）×0.5×（－3）（－）××（－1.8）=－6=－60=0.9（－0.25）×（－）×4×（－7）（－）×（－）×（－）=－4=－（－8）×4×（－）×（－0.75）4×（－96）×（－0.25）×=－12=2（－1+）×56（――）×36=32—63+12=30—27—28=19=－25（－）×（8－－0.4）（－66）×〔1－（－）＋（－）〕=－6+1+0.3=－66－63－22+55=－4.7=－9625×－（－25）×＋25×（－36）×（＋－）=25×（+＋）=－16－30+21=25×1=－25=37原则四：巧妙运用运算律（+－＋）×72×(2－)×(－)×(－)=28+54－60+56=×()×(－)×(－)=78=有理数除法18÷（－3）（－24）÷6（－57）÷（－3）（－）÷（－42）÷（－6）=－6=－4=19=－=7（+）÷（－）（－）÷90.25÷（－）－36÷（－1）÷（－）=－=－=－2=－40（－1）÷（－4）÷3÷（－）×(－)0÷［(－3)×(－7)］===0－3÷（－）（－24）÷（－6）2÷（5－18）×=－36=4=－1÷（－3）×（－）－×（－）÷（－）（－）÷（－）==－=（－+）÷（－）－3.5×（－0.5）×÷－1÷（－1）×1×（－7）=－6+-1=－×（－）××2=－×××7=－6=1=－=－6×（－－）÷÷（－2）－×－÷4=－××=×（－）－×－×=－4=－×(++1)=－×=－1原则五：结果的形式要与题目中数的形式保持一致。如确定是分数还是小数，分数必须是带分数或真分数，不得是假分数，过程中无所谓。0.8×+4.8×（－）－2.2÷+0.8×=0.8×(+)－×－×=－－=－－=－－5=－－5=－5有理数混合运算（－）×（－15×4）（－2.4）=10+9－48+35==62÷（－）×÷（－5）［15－（1÷1＋3）］÷（－1）==［15－×－3］×=［12－×］×=×==9×（－5）÷（－）×5－（－+－）÷（－）=25=（－+－）×42=14－2+9－12=9－13×－0.34×+×（－13）－×0.348－（－25）÷（－5）=［－13×+×（－13）］－0.34×－×0.34=3=－13－0.34=－13.34（－13）×（－134）××（－）（－4）－（－5）+（－4）－3=－2=－8+1=－6（－16－50+3）÷（－2）（－0.5）－（－3）+6.75－5=8+25－1=（－0.5）－5+6.75－（－3.25）=31=4178－87.21+43+53－12.79（－6）×(－4)+(－32)÷(－8)－3=178－87.21－12.79+43+53=24+4－3=178－100+97=25=175－－(－)+|－1|（－9）×(－4)+(－60)÷12=1=36－6=31[(－)－1+]÷(－)－|－3|÷10－（－15）×－×（8－2－0.04）=[－－+]×(－42)=－+5=－6++0.03=－6+1.75+0.03=27+72－16=83=4=－4.22－1×（－）÷2（2－3+1）÷（－1）×（－7）=－×（－）×=(－+)×（－）×（－7）==(－+)×6=14－21+=4有乘方的运算：－2×－－－－2×÷=－18=－3=17=－1+2=1=9÷16=×＋×××－=－=－68===4096=×EMBEDEquation.3×=－6×9=－54EMBEDEquation.3＋＋－×－－+=2=－4－27+1=－+=－30=00－÷3××÷－×－÷=24=4××=1=－1+32=31×(－＋1)×06+×－10+8÷－4×3=0=5=－20－－－（1－0.5）×××=－1－1=－2=－1－=－1=－44×+6×××－+2×+（－6）÷=42==－49+18－54=－97÷（-8）－×（-）×（）×=－2－=－2=0－2［－3×］÷÷9÷36×=4+4×5=24=9=1－｛｝－+（1－0.5）××［2×］=－｛－27－3.3｝=30.3=－1+3=2－4×+－－+×÷=4+16=20=－27+2－18=－43过关测试2.=－18=－3.4.=0=－235.6.=4=31.8.=－8=－459.10.=－28=111.12.=8+25－1=－48+8－80=31=－12013.14.=－=－115.16.=9=17.18.=－1+=81×××==119.20.=－25－［－4－］=(－5－7+12)×(－3)=－20=021.22.=－10－80=9－－9=－90=－Word文档_1323542269.unknown_1323970250.unknown_1389339569.unknown_1389360131.unknown_1389363828.unknown_1389365840.unknown_1389368876.unknown_1389370091.unknown_1389370482.unknown_1389370840.unknown_1389370963.unknown_1389371459.unknown_1389371426.unknown_1389370841.unknown_1389370494.unknown_1389370333.unknown_1389370454.unknown_1389370360.unknown_1389370261.unknown_1389369638.unknown_1389369994.unknown_1389369338.unknown_1389366905.unknown_1389367237.unknown_1389367507.unknown_1389367189.unknown_1389366443.unknown_1389366550.unknown_1389366064.unknown_1389364980.unknown_1389365228.unknown_1389365588.unknown_1389365758.unknown_1389365393.unknown_1389365037.unknown_1389365173.unknown_1389364981.unknown_1389364771.unknown_1389364814.unknown_1389364883.unknown_1389364925.unknown_1389364926.unknown_1389364884.unknown_1389364857.unknown_1389364773.unknown_1389364774.unknown_1389364775.unknown_1389364772.unknown_1389364307.unknown_1389364502.unknown_1389364590.unknown_1389363937.unknown_1389361087.unknown_1389361847.unknown_1389362580.unknown_1389362581.unknown_1389362582.unknown_1389362517.unknown_1389362518.unknown_1389362516.unknown_1389361640.unknown_1389361766.unknown_1389361088.unknown_1389360920.unknown_1389360981.unknown_1389361026.unknown_1389360959.unknown_1389360960.unknown_1389360921.unknown_1389360431.unknown_1389360779.unknown_1389360253.unknown_1389358537.unknown_1389359623.unknown_1389359836.unknown_1389360042.unknown_1389360130.unknown_1389360041.unknown_1389359775.unknown_1389359835.unknown_1389359665.unknown_1389358886.unknown_1389359367.unknown_1389359558.unknown_1389359270.unknown_1389358887.unknown_1389358658.unknown_1389358740.unknown_1389358570.unknown_1389356301.unknown_1389358014.unknown_1389358333.unknown_1389358488.unknown_1389358133.unknown_1389357176.unknown_1389357302.unknown_1389357021.unknown_1389355931.unknown_1389356175.unknown_1389356259.unknown_1389356048.unknown_1389354368.unknown_1389354882.unknown_1389341619.unknown_1323971099.unknown_1324055813.unknown_1324057715.unknown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