初一数学有理数计算题方程练习
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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
321264xx
133221xx (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