(高频考点)新初一分班考专题07-整数、小数、分数、百分数计算题(专项突破)
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这是一份(高频考点)新初一分班考专题07-整数、小数、分数、百分数计算题(专项突破),共30页。试卷主要包含了夯实基础,提高拓展,精做精练,查漏补缺等内容,欢迎下载使用。
备考小升初数学的四大复习攻略
小升初数学考试有以下几个特点:时间短,题目多,计算量大,考得很灵活。在备考时,必须要严格按照以下四步给孩子进行辅导:夯实基础;提高拓展;精做精练;查漏补缺。
1、夯实基础。基础知识是整个数学知识体系中最根本的基石。
2、提高拓展。涉及的有关知识点要进行过关、强化训练,做到知识点之间能够融会贯通。
3、精做精练。精选几套模拟试题,其中包括历年联考试题。
4、查漏补缺。订正比做题更加重要,对比错解和订正后的正确过程,就能发现错误的原因。
(高频考点)新初一分班考专题7-整数、小数、分数、百分数计算题(专项突破)-小学数学六年级下册人教版
一.计算题(共26小题)
1.用递等式计算。
4920÷24﹣16×12
(6.3+2.1)÷2.4
24×()
[()]
2.脱式计算,能简算的要用简便方法计算。
(1)2.5×32×1.25
(2)×[+(20﹣9.8)]
(3)﹣+﹣
(4)8×(+)+
3.计算(能简算的要简算)
(+﹣)×36
5.28﹣0.44+1.72﹣2.56
÷[+×(1﹣)]
3.2×25×12.5
4.怎样算简便就怎样算。
0.65×13+88×65%﹣
()÷
1.25×88
(7.2+)﹣
5.能简算的要简算。
(++)×24
÷[(1+)×3]
48×0.13+52×0.13
6.用你喜欢的方法计算下面各题。
59×101
12.7﹣3.6﹣5.4
2.5÷×
12.5×8÷12.5×8
24×(+﹣)
×[﹣(﹣)]
7.脱式计算(能简算的要简算)。
(1)270﹣49﹣156
(2)(5.9+1.65)÷0.25
(3)3.8×99+3.8
(4)4×0.37×25
(5)÷[×(﹣)]
(6)÷7+×
8.用脱式计算。(能简算的要简算)
(1)35×(1﹣)÷
(2)
(3)24﹣17.5÷2.5×1.5
(4)
(5)
(6)0.125×2.5×32
9.计算下面各题,能用简便算法的就用简便算法
[1﹣()]÷
10.28+8.14﹣5.28
240×()
10.计算下列各题。(能简算的要简算)
(1)12.7﹣3.6﹣6.4
(2)÷[()×]
(3)9.7×99+9.7
(4)36×()
11.计算下面各题,怎样简便就怎样算。
6.39÷0.25÷4
4.5×+5.5×80%
24×()
12.脱式计算,能简算的要简算。
15.28﹣3.6﹣3.4
()×7.2
7.5÷[(6.8﹣4.3)×0.12]
13.计算下面各题。
6.3﹣2.9﹣2.1+5.7
20﹣1.53÷1.5+0.2
×[÷(﹣)]
÷[×(0.4+)]
14.能简算的要简算。
65×(﹣)
18.52÷+5.48×
7.6×+1.4×0.8+80%
35.4÷12.5÷0.8
17.83﹣6.97+2.17﹣3.03
1998×
15.选择适当的方法计算
①26×35+5.4÷0.27
②0.6×49+52×﹣60%
③1÷[2﹣(+)]
④18.25﹣(6.45﹣1)
⑤(+)×7÷15
⑥(5.6﹣×19.2)÷
16.递等式计算,怎么简便怎么算。
7.2×+4.5×
48×()×16
26.3÷2.5÷4+0.37
()×7﹣28÷29
17.用合理的方法脱式计算(能简算的要写出简算过程)。
9.375﹣4.5﹣(﹣)
3.2×0.25×125
÷[(﹣25%)÷]
(+﹣)÷
(3.2×1.5+2.4)÷1.6
0.75×65+×34+75%
18.脱式计算,能简算的简算。
(7.5+2.5)×0.25
2.75×1.8+12.5×0.18
[1﹣()]×36
19.下面各题,怎样算简便就怎样算。
69÷[1.4﹣(6.5﹣5.4)]
21.8×9.7+2.18×3
()÷
20.计算,能简便的要简便计算。
(﹣+)÷
÷+×
2.3×85+23×1.5
4×0.8×2.5×12.5
21.计算,能简算的要写出简算过程。
12.5×0.45×54+0.125
()×2×3×4
(90+)×
÷()
[()×]
+……+
22.怎样算简便就怎样算
①()×24
②(8.25﹣3.15)÷2.5÷4
③4.75+3+5.6+25%
④21÷()÷
23.能简算就要简算。
()×12
5.58+
5.02﹣1.37﹣2.63
1.25×25×32
2.8×+2.2×25%﹣0.25
24.计算下面各题,能简便的要简便。
(+)×18
12.5%×32×25%
÷7+×
÷[﹣(+)]
25.计算下面各题,能简算的要简算。
25×32×1.25
(﹣0.375)÷(×)
×+÷7
6﹣(+)
26.计算下面各题,能简算的要简算。
①×37+11÷
②+0.4+0.875
③20×+1÷50%
(高频考点)新初一分班考专题7-整数、小数、分数、百分数计算题(专项突破)-小学数学六年级下册人教版
参考答案与试题解析
一.计算题(共26小题)
1.【解答】解:(1)4920÷24﹣16×12
=205﹣192
=13
(2)(6.3+2.1)÷2.4
=8.4÷2.4
=3.5
(3)24×()
=24×+24×
=10+9
=19
(4)[()]
=[]
=
=
2.【解答】解:(1)2.5×32×1.25
=2.5×(4×8)×1.25
=(2.5×4)×(8×1.25)
=10×10
=100
(2)×[+(20﹣9.8)]
=×[+10.2]
=×11
=
(3)﹣+﹣
=(+)﹣(+)
=1﹣1
=0
(4)8×(+)+
=8×+8×+
=3++
=3+(+)
=3+1
=4
3.【解答】解:(1)(+﹣)×36
=×36+×36﹣×36
=16+15﹣15
=31﹣15
=15
(2)5.28﹣0.44+1.72﹣2.56
=5.28+1.72﹣0.44﹣2.56
=5.28+1.72﹣(0.44+2.56)
=7﹣3
=4
(3)÷[+×(1﹣)]
=÷[+×]
=÷[+]
=÷
=
(4)3.2×25×12.5
=(0.4×8)×25×12.5
=(0.4×25)×(8×12.5)
=10×100
=1000
4.【解答】解:(1)0.65×13+88×65%﹣
=0.65×(13+88﹣1)
=0.65×100
=65
(2)()÷
=(+)÷
=÷
=
(3)1.25×88
=1.25×(8×11)
=1.25×8×11
=10×11
=110
(4)(7.2+)﹣
=8﹣×8
=(﹣)×8
=×8
=
5.【解答】解:(1)(++)×24
=×24+×24+×24
=6+4+3
=13
(2)÷[(1+)×3]
=÷[×3]
=÷
=
(3)48×0.13+52×0.13
=0.13×(48+52)
=0.13×100
=13
6.【解答】解:(1)59×101
=59×(100+1)
=59×100+59×1
=5900+59
=5959
(2)12.7﹣3.6﹣5.4
=12.7﹣(3.6+5.4)
=12.7﹣9
=3.7
(3)2.5÷×
=4×
=7
(4)12.5×8÷12.5×8
=(12.5÷12.5)×(8×8)
=1×64
=64
(5)24×(+﹣)
=24×+24×﹣24×
=6+20﹣21
=5
(6)×[﹣(﹣)]
=×[﹣+]
=×[+﹣]
=×[1﹣]
=×
=
7.【解答】解:(1)270﹣49﹣156
=221﹣156
=65
(2)(5.9+1.65)÷0.25
=7.55÷0.25
=30.2
(3)3.8×99+3.8
=3.8×(99+1)
=3.8×100
=380
(4)4×0.37×25
=4×25×0.37
=100×0.37
=37
(5)÷[×(﹣)]
=÷[×]
=÷
=
(6)÷7+×
=×+×
=(+)×
=1×
=
8.【解答】解:(1)35×(1﹣)÷
=(35﹣35×)×
=(35﹣15)×
=20×
=48
(2)
=(55.2+4.8)﹣(+)
=60﹣2
=58
(3)24﹣17.5÷2.5×1.5
=24﹣7×1.5
=24﹣10.5
=13.5
(4)
=+5+
=++5
=1+5
=6
(5)
=×(5+3+1)
=×9
=2
(6)0.125×2.5×32
=(0.125×8)×(2.5×4)
=1×10
=10
9.【解答】解:(1)[1﹣()]÷
=[1﹣]÷
=÷
=
(2)10.28+8.14﹣5.28
=10.28﹣5.28+8.14
=5+8.14
=13.14
(3)240×()
=240×﹣240×
=90﹣20
=70
10.【解答】解:(1)12.7﹣3.6﹣6.4
=12.7﹣(3.6+6.4)
=12.7﹣10
=2.7
(2)÷[()×]
=÷[×]
=×
=
(3)9.7×99+9.7
=9.7×(99+1)
=9.7×100
=970
(4)36×()
=36××36×36
=21+20﹣9
=32
11.【解答】解:6.39÷0.25÷4
=6.39÷(0.25×4)
=6.39÷1
=6.39
4.5×+5.5×80%
=4.5×0.8+5.5×0.8
=(4.5+5.5)×0.8
=10×0.8
=8
24×()
=24×+24×﹣24×
=8+14﹣15
=7
12.【解答】解:(1)15.28﹣3.6﹣3.4
=15.28﹣(3.6+3.4)
=15.28﹣7
=8.28
(2)()×7.2
=×7.2+×7.2﹣×7.2
=6+1.6﹣2.7
=4.9
(3)
=×0.75+0.75×
=(+)×0.75
=1×0.75
=0.75
(4)7.5÷[(6.8﹣4.3)×0.12]
=7.5÷[2.5×0.12]
=7.5÷0.3
=25
13.【解答】解:(1)6.3﹣2.9﹣2.1+5.7
=(6.3+5.7)﹣(2.9+2.1)
=12﹣5
=7
(2)20﹣1.53÷1.5+0.2
=20﹣1.02+0.2
=18.98+0.2
=19.18
(3)×[÷(﹣)]
=×[÷]
=×
=2
(4)÷[×(0.4+)]
=÷[×]
=÷
=
14.【解答】解:(1)65×(﹣)
=65×﹣65×
=52﹣35
=17
(2)18.52÷+5.48×
=18.52×+5.48×
=(18.52+5.48)×
=24×
=40
(3)7.6×+1.4×0.8+80%
=(7.6+1.4+1)×
=10×
=8
(4)35.4÷12.5÷0.8
=35.4÷(12.5×0.8)
=35.4÷10
=3.54
(5)17.83﹣6.97+2.17﹣3.03
=17.83+2.17﹣6.97﹣3.03
=17.83+2.17﹣(6.97+3.03)
=20﹣10
=10
(6)1998×
=(1997+1)×
=1997×+1×
=1995+
=1995
15.【解答】解:①26×35+5.4÷0.27
=910+20
=930
②0.6×49+52×﹣60%
=0.6×49+52×0.6﹣0.6
=0.6×(49+52﹣1)
=0.6×100
=60
③1÷[2﹣(+)]
=1÷[2﹣]
=1÷
=
④18.25﹣(6.45﹣1)
=18.25﹣6.45+1
=18.25+1﹣6.45
=20﹣6.45
=13.55
⑤(+)×7÷15
=×7÷15
=÷15
=
⑥(5.6﹣×19.2)÷
=(5.6﹣3.2)÷
=2.4÷
=8.8
16.【解答】解:(1)7.2×+4.5×
=4.5×(7.2+2.8)
=4.5×10
=45
(2)48×()×16
=48××16﹣×48×16
=240﹣96
=144
(3)26.3÷2.5÷4+0.37
=26.3÷(2.5×4)+0.37
=26.3÷10+0.37
=2.63+0.37
=3
(4)()×7﹣28÷29
=()×7﹣
=(×7+×7)﹣
=5+(﹣)
=5+0
=5
17.【解答】解:(1)9.375﹣4.5﹣(﹣)
=9.375﹣4.5﹣+
=(9.375+)﹣(4.5+)
=10﹣5
=5
(2)3.2×0.25×125
=(0.4×0.25)×(8×125)
=0.1×1000
=100
(3)÷[(﹣25%)÷]
=÷[÷]
=÷
=
(4)(+﹣)÷
=(+﹣)×24
=×24+×24﹣×24
=20+21﹣10
=31
(5)(3.2×1.5+2.4)÷1.6
=(4.8+2.4)÷1.6
=4.5
(6)0.75×65+×34+75%
=0.75×(65+34+1)
=0.75×100
=75
18.【解答】解:(1)(7.5+2.5)×0.25
=10×0.25
=2.5
(2)2.75×1.8+12.5×0.18
=2.75×1.8+1.25×1.8
=(2.75+1.25)×1.8
=4×1.8
=7.2
(3)[1﹣()]×36
=1×36﹣×36﹣×36
=36﹣18﹣12
=6
19.【解答】解:(1)
=×(﹣)
=×
=
(2)69÷[1.4﹣(6.5﹣5.4)]
=69÷[1.4﹣1.1]
=69÷0.3
=230
(3)21.8×9.7+2.18×3
=21.8×(9.7+0.3)
=21.8×10
=218
(4)()÷
=××
=×
=
20.【解答】解:(1)(﹣+)÷
=(﹣+)×24
=×24﹣×24+×24
=16﹣12+4
=8
(2)÷+×
=×+×
=(+)×
=1×
=
(3)2.3×85+23×1.5
=23×8.5+23×1.5
=23×(8.5+1.5)
=23×10
=230
(4)4×0.8×2.5×12.5
=(4×2.5)×(0.8×12.5)
=10×10
=100
21.【解答】解:(1)12.5×0.45×54+0.125
=0.125×(45+54+1)
=0.125×100
=12.5
(2)()×2×3×4
=×2×3×4+×2×3×4+×2×3×4
=12+8+6
=26
(3)(90+)×
=(89+)×
=89×+×
=1+
=1
(4)÷()
=÷(++)
=÷
=
(5)[()×]
=[×]
=÷
=
(6)+……+
=(1﹣)+(﹣)+(﹣)+(﹣)……+(﹣)
=1﹣+﹣+﹣+﹣……+﹣
=1﹣
=
22.【解答】解:①()×24
=×24+×24﹣×24
=20+14﹣9
=25
②(8.25﹣3.15)÷2.5÷4
=5.1÷(2.5×4)
=5.1÷10
=0.51
③4.75+3+5.6+25%
=(4.75+0.25)+(3.4+5.6)
=5+9
=14
④21÷()÷
=21÷(+)×
=21××
=21×(×)
=21×
=35
23.【解答】解:(1)÷8+×
=×+×
=×(+)
=
(2)()×12
=×12+×12﹣×12
=3+8﹣10
=1
(3)5.58+
=(5.58+5.42)+(+)
=11+1
=12
(4)5.02﹣1.37﹣2.63
=5.02﹣(1.37+2.63)
=5.02﹣4
=1.02
(5)1.25×25×32
=1.25×25×4×8
=(1.25×8)×(25×4)
=10×100
=1000
(6)2.8×+2.2×25%﹣0.25
=2.8×0.25+2.2×0.25﹣0.25
=0.25×(2.8+2.2﹣1)
=0.25×4
=1
24.【解答】解:①(+)×18
=
=14+15
=29
②12.5%×32×25%
=(0.125×8)×(4×0.25)
=1×1
=1
③÷7
=
=()×
=
=
④÷[﹣()]
=[]
=
=
=1
25.【解答】解:(1)25×32×1.25
=(25×4)×(8×1.25)
=100×10
=1000
(2)(﹣0.375)÷(×)
=(﹣)÷
=×
=
(3)×+÷7
=×+×
=(+)×
=×
=
(4)6﹣(+)
=6﹣﹣
=6﹣
=5
26.【解答】解:①×37+11÷
=×37+11×
=×(37+11)
=
=18
②+0.4+0.875
=0.6+0.125+0.4+0.875
=0.6+0.4+(0.125+0.875)
=1+1
=2
③20×+1÷50%
=16+2
=18
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