初一数学有理数计算题方程练习

  • 格式:doc
  • 大小:652.86 KB
  • 文档页数:24

1 8141211 )3(31)2(

18 )5()2()10(8

)6()11()8(12 12—(—18)+(—7)—15

(一3)×18+14 25409;

)543()511( )3(31)2(

22)2(323 15+(―41)―15―(―0.25)

6.32.53.44.15.1 21316

-9+5×(-6) -(-4)2÷(-8) 11+(-22)-3×(-11)

2 455 31432124

48165() 36(6)72(8)

)32(9449)81( —48 × )1216136141(

854342 22)7(])6()61121197(50[

24161315.0 )7.1(5.2)4.2(5.23.75.2

2532.0153 35132211|5|

3 214124322 2313133.0121

4×(-3)2-13+(-12 )-|-43| -32 -[(-2)2 -(1-54×43)÷(-2)]

-22-(-3)3×(-1)4-(-1)5 -1-(1-0.5)×31×[2-(-3)2]

32232692)23()3)(2(

11148()6412 312618

23)31(-(-6) -12-(1-0.5)×(-131)×[2-(-3)2]

-23-3×(-2)3-(-1)4 (-62)21()25.0(|-3|32)23

4 5234212223 35132211|5|

5 ; ;

1+(-2)+︱-2-3︱-5 (23)÷(58)÷(-0.25)

1314864 ︱97︱×(23-15)―13× (-1) 2008

220095150.813 24192840

6015112132 42233

132222 53332162322

6 4812163 5.6-7+3.4

21324112 21231342

321264xx

133221xx (2m+2)×4m2

(2x+y)2-(2x-y)2

(31xy)2·(-12x2y2)÷(-34x3y)

[(3x+2y)(3x-2y)-(x+2y)(3x-2y)]÷3x

7 212116()4(3)2 233256323xxxx

2)6(328747 化简:)42()12()34(222aaaaaa

8

5615421330112091276523 )48(8)1216143(

]1)32(3[21102 -22+22×[(-1)10+|-1|]

)756071607360()1272153( 231()(24)346

16()2(1.5)5 364(2.5)(0.1)

22(3)3(3)(4) 6.32.53.44.15.1

1313124524864 322514542484

9 21316

24161315.0 )7.1(5.2)4.2(5.23.75.2

2532.0153

(-14)-(-16)-(+6) 解方程:5(8-3x)=x

2351(4)0.25(5)()82

3×(-4)+(-28) ÷7 4×(-3)2-15÷(-3)-50

10 87218743)31( )(]3)2[()1(72233

)6(30)43()4(2

)3()3(8)4(3 )25.0()43()32(42

423)1()32(942 )15(57baba

)5(|425|])21()21[()2(32 )871213815.2()15(25149

41)4(2)2(3 ]2)31()4[(10223