有理数加减混合运算(计算练习题)(答案)

时间:2022-04-20 14:00:33 阅读: 最新文章 文档下载
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1、计算:

1)-59+1 21017+2 3)-34+1910 4)-8+121622 =-13 =-5 =2 =-34

4533

5+3.41)-(-0.59 61313 (7)9+(—3+3

7744

=4 =2.计算:

1

=-9 7

121521

(1)-4.2+5.7-8.4+10 (2)6.1-3.7-4.9+1.8 (3)1 (4)

334632

=11.5 =-0.7 =

23 = 34

3.计算:

1(—36)—(—25)—(+36++72; 2(—8)—(—3++5)—(+9 =-35 =-9

1112

3()()() 4 1.43.65.24.31.5

26435

= =-10.2 44.计算:

1 13-(-18+(-7)-15 (2)4028-(-19+(-24)-(-32); =9 =-51

34.7-(-8.9)-7.5+(-6 (0.6)+1.7+(+0.6 )+(1.7 )+(8 ) =0.1 =-8


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