七年级数学上册有理数的认识及运算练习题精选47Word文档下载推荐.docx
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5、计算。
113
1-—+—17×
(-14)+24×
(-14)
312
145
(-+-)×
-(-138)×
18÷
(-24)
534
117
-(—-—-—)×
2805×
[20+(-5)3]
578
4—,4,0,-1.6
—,-4.5,7,-6.9
2—,-2.2,-2,-0.56
(1)-12与-3
(2)-5与0.25(3)|-4.5|与|-0.8|
(4)-—与-—(5)-6与-|-9|(6)|-17.5|与|-7.3|
35
17
7-—-—26×
(-15)+11×
(-15)
918
118
(-+-)÷
-(-108)×
8÷
(-21)
757
711
-(—+—+—)×
1926×
[3+(-3)2]
864
5—,2,0,5.6
—,13.5,-15,-2.7
9—,3,3,0.8
7
(1)-13与4
(2)-5与-1.5(3)|-3.9|与|3.5|
(4)-—与-—(5)-18与-|-7|(6)|-5|与|-9.9|
55
513
5+—+—12×
(-4)+25×
(-4)
615
911
-(-72)×
10÷
(-18)
837
336
1122×
[20-(-5)3]
447
3
5—,-1,0,-2.4
—,0.5,20,-5.3
-2—,0.55,10,0.24
(1)-11与1
(2)-2.25与-0.75(3)|-9.2|与|-2.1|
(4)-—与-—(5)-16与-|-4|(6)|-27.3|与|-6.2|
75
713
6+—+—18×
(-14)-3×
915
-(-132)×
16×
(-6)
848
519
2402×
[9+(-2)2]
658
3—,-2,0,-2.4
—,12,-2,-4.9
-5—,0.05,5,-0.64
(1)-13与-3
(2)-2.5与0.75(3)|-9.3|与|1.7|
(4)-—与-—(5)-8与-|-8|(6)|-55.7|与|-7.1|
25
11
6-—-—14×
(-9)-28×
(-9)
618
618
(---)÷
-(-60)÷
4÷
567
615
1206×
[14-(-5)2]
564
5—,-1,0,1.6
-—,-21,-9,-3.3
8
6—,-1.05,1,0.08
(1)-13与4
(2)-3.25与2.5(3)|-4.5|与|-2.5|
(4)-—与-—(5)-1与-|-4|(6)|-19.7|与|-3.4|
73
111
8-—-—23×
(-1)-22×
(-1)
449
2÷
358
666
1259×
[3-(-3)3]
555
3—,1,0,-6.4
-—,-4,-13,9.5
1—,-0.6,-9,0.48
(1)-12与-4
(2)-5与-0.25(3)|-8.2|与|-1.8|
(4)-—与-—(5)17与-|-9|(6)|-60.9|与|-4|
95
5+—+—25×
(-8)+13×
(-8)
577
-(-150)×
2×
486
191
4481×
[20-(-1)2]
788
-5—,-4.5,0,-4
-—,-11,6,8.9
4—,3.05,-5,-0.24
(1)-11与0
(2)-3与-0.75(3)|-5.3|与|-3|
(4)-—与-—(5)16与-|-2|(6)|-90|与|-3.4|
37
3+—+—28×
(-9)-2×
314
-(-138)÷
12÷
435
718
[7+(-4)3]
857
2—,2.5,0,5.6
—,-18,-20,-4.1
6
9—,0.55,-6,0.64
(1)-12与-6
(2)-4.5与-1.25(3)|-8.3|与|-0.9|
(4)-—与-—(5)17与-|-7|(6)|-37.3|与|-6.5|
711
5-—+—19×
(-3)-14×
(-3)
497
386
176
-(—-—+—)×
2109×
[17+(-1)2]
1—,-1,0,0.8
—,-1.5,-20,-8.1
-7—,-0.3,