所属成套资源:新初一分班考专题复习-小学数学六年级下册北师大版
(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北师大版
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这是一份(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北师大版,共22页。试卷主要包含了仔细算一算,怎样简便就怎样计算,脱式计算,能简算的要简算,计算下面各题,能简算的要简算,脱式计算,计算下面各题,能简算的要简算.,用合适的方法计算,计算,能简便的要简便计算,递等式计算等内容,欢迎下载使用。
(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北师大版
一.计算题(共26小题)
1.仔细算一算,怎样简便就怎样计算。
30×5.7+17×57
×[(+0.75)÷]
2.脱式计算,能简算的要简算。
15.9﹣8.6﹣1.4
28×(﹣+)
÷×
×[(0.6+)÷]
3.计算下面各题,能简算的要简算。
①20.17﹣2.26﹣17.84
②3×﹣÷11
③×[÷()]
4.脱式计算。(能简算的要简算)
57÷÷
36×(﹣)
2.14+0.875+0.26+0.125
5.计算下面各题,能简算的要简算。
14﹣2﹣1
(﹣)÷(1﹣)
4.25×99×2+8.5
32×12.5%×25
6.计算下面各题,能简算的要简算.
0.3+13.2÷(2.5﹣1.3)×2
16.73﹣3.17﹣1.83+3.27
7.用合适的方法计算
2.25×5.6+77.5×56%
8.计算,能简便的要简便计算。
4×0.8×2.5×12.5
2.3×85+23×1.5
(﹣+)÷
(+)×(2﹣)
9.递等式计算(选择合理的方法计算)。
①2.5×12.5×50×0.8
②23×()×32
③(3.1﹣﹣)÷1
④17÷64×1.25+÷+9.5×125%
10.计算下面各题,怎样简便就怎样算。
6.67+16.67+3.33﹣6.67
88×+13×75%−0.75
110÷[×(−)]
11.计算下列各题,能简算的要简算。
4÷÷4
2﹣
12.下面各题,怎样算简便就怎样算。
÷[(﹣)÷]
(+)×15×11
×2021
14×+51×
13.计算。(能简算的要简算)
(1)(﹣)×42
(2)6÷(+)
(3)×(+)+
(4)[﹣(﹣)]÷
14.脱式计算(能简算的简便计算)。
(+﹣)×24
1.875﹣+﹣
36.3×0.42+42%×63.7
15.计算题
(1)0.75×4.75+4×4.25
(2)
16.
18+2.35﹣8.6
0.75+7.5×1.63+75%×2.7
17.脱式计算,能简算的要简算。
2.6×9.9
0.125××8×
1.6÷
18.能简算的要简算。
(1)
(2)
(3)1.25×88+12.5×1.2
(4)
19.用递等式计算,能简算的要简算。
13.5÷[1.5×(1.07+1.93)]
2.94×+4.06÷2
20.计算下面各题,能简便的用简便方法计算。
(1)6.4×101
(2)(0.35﹣0.2)÷5%
(3)×[﹣()]
21.下列各题,怎样简便就怎样算,并写出简算过程。
(1)×3.2+5.6×0.5+1.2×50%
(2)(51×68×78)÷(17×34×13)
(3)÷{(+)×}
(4)3.7+5.2+6.3+0.8
22.计算下面各题,能简便的用简便方法计算。
(1)11.2﹣3.6﹣6.4
(2)
(3)10.4××0.4
23.仔细算一算,怎样简便就怎样计算。
4×1.25×2.5÷12.5%
102×99
24.下面各题,怎样简便怎样算。
(1)17.35﹣3.25﹣2.75
(2)÷[(0.75﹣)×]
(3)8.5÷+7.5×75%+
(4)0.25×3.2×12.8
25.能简算的请使用简便算法。
32.4﹣5.72﹣4.28
3.28×37+6.4×32.8﹣32.8%
18×21×(+)
8××12.5%×
26.计算下面各题,怎样简便就怎样算。
6.67+16.67+3.33﹣6.67
88×+13×75%﹣0.75
÷[×(﹣)]
(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北师大版
参考答案与试题解析
一.计算题(共26小题)
1.【解答】解:(1)30×5.7+17×57
=3×57+17×57
=(3+17)×57
=20×57
=1140
(2)×[(+0.75)÷]
=×[(+)÷]
=×[×]
=×
=
2.【解答】解:(1)15.9﹣8.6﹣1.4
=15.9﹣(8.6+1.4)
=15.9﹣10
=5.9
(2)28×(﹣+)
=28×﹣28×+28×
=14﹣8+7
=13
(3)÷×
=×
=
(4)×[(0.6+)÷]
=×[(÷]
=×
=
3.【解答】解:①20.17﹣2.26﹣17.84
=20.17﹣(2.26+17.84)
=20.17﹣20.1
=0.07
②3×﹣÷11
=3×﹣×
=(3﹣)×
=×
=
③×[÷()]
=×[÷]
=×
=4
4.【解答】解:①57÷÷
=57××
=57
②36×(﹣)
=36×﹣36×
=27﹣15
=12
③2.14+0.875+0.26+0.125
=(2.14+0.26)+(0.875+0.125)
=2.4+1
=3.4
5.【解答】解:(1)14﹣2﹣1
=14﹣(2+1)
=14﹣4
=10
(2)(﹣)÷(1﹣)
=÷
=1
(3)4.25×99×2+8.5
=4.25×2×99+8.5
=8.5×99+8.5
=8.5×(99+1)
=8.5×100
=850
(4)32×12.5%×25
=8×4×12.5%×25
=(8×12.5%)×(25×4)
=1×100
=100
6.【解答】解:(1)0.3+13.2÷(2.5﹣1.3)×2
=0.3+13.2÷1.2×2
=0.3+11×2
=0.3+22
=22.3
(2)
=×48+×48+×48
=6+8+16
=30
(3)16.73﹣3.17﹣1.83+3.27
=(16.73+3.27)﹣(3.17+1.83)
=20﹣5
=15
7.【解答】解:(1)
=36×﹣36×+36×
=18﹣8+21
=31
(2)
=÷[×4]
=÷
=
(3)2.25×5.6+77.5×56%
=5.6×(2.25+7.75)
=5.6×10
=56
8.【解答】解:(1)4×0.8×2.5×12.5
=(4×2.5)×(0.8×12.5)
=10×10
=100
(2)2.3×85+23×1.5
=23×8.5+23×1.5
=23×(8.5+1.5)
=23×10
=230
(3)(﹣+)÷
=(﹣+)×24
=×24﹣×24+×24
=16﹣12+4
=8
(4)(+)×(2﹣)
=×
=
9.【解答】解:①2.5×12.5×50×0.8
=(2.5×50)×(12.5×0.8)
=125×10
=1250
②23×()×32
=23××32+23××32
=160+115
=275
③(3.1﹣﹣)÷1
=[3.1﹣(+)]÷1
=[3.1﹣1]÷1
=2.1÷1
=1.2
④17÷64×1.25+÷+9.5×125%
=×1.25+×1.25+9.5×1.25
=(+9.5)×1.25
=10×1.25
=12.5
10.【解答】解:(1)6.67+16.67+3.33﹣6.67
=6.67﹣6.67+16.67+3.33
=6.67﹣6.67+(16.67+3.33)
=0+20
=20
(2)88×+13×75%−0.75
=(88+13﹣1)×
=100×
=75
(3)110÷[×(−)]
=110÷[×]
=110÷
=1320
11.【解答】解:(1)÷14×
=××
=×
=
(2)4÷÷4
=5﹣
=4
(3)÷+×
=×(+)
=×1
=
(4)(﹣)×40
=×40﹣×40
=8﹣2
=6
(5)2﹣
=2﹣﹣
=2﹣(+)
=2﹣1
=1
(6)÷[(+)×]
=÷[×]
=÷
=
12.【解答】解:(1)÷[(﹣)÷]
=÷[÷]
=÷
=4
(2)(+)×15×11
=×15×11+×15×11
=22+45
=67
(3)×2021
=×(2020+1)
=×2020+×1
=2019+
=2019
(4)14×+51×
=14×+29×
=(14+29)×
=43×
=51
13.【解答】解:(1)(﹣)×42
=×42﹣×42
=35﹣18
=17
(2)6÷(+)
=6÷
=
(3)×(+)+
=×+
=+
=
(4)[﹣(﹣)]÷
=[﹣]÷
=×
=
14.【解答】解:(1)(+﹣)×24
=×24+×24﹣×24
=3+8﹣6
=11﹣6
=5
(2)1.875﹣+﹣
=1.875+﹣﹣
=(1.875+)﹣(+)
=2﹣1
=1
(3)36.3×0.42+42%×63.7
=(36.3+63.7)×0.42
=100×0.42
=42
15.【解答】解:(1)0.75×4.75+4×4.25
=4.75×(0.75+1+4.25)
=4.75×6
=28.5
(2)
=+++
=+++
=1
16.【解答】解:(1)18+2.35﹣8.6
=18﹣8.6+2.35
=10+2.35
=12.35
(2)0.75+7.5×1.63+75%×2.7
=0.75×(1+16.3+2.7)
=0.75×20
=15
(3)
=12÷[×﹣×]
=12÷[﹣]
=12÷
=72
17.【解答】解:(1)2.6×9.9
=2.6×(10﹣0.1)
=2.6×10﹣0.26
=26﹣0.26
=25.74
(2)0.125××8×
=(0.125×8)×(×)
=1×1
=1
(3)1.6÷
=1.6÷×
=3×
=
18.【解答】解:(1)
=27÷[+]
=27÷
=24
(2)
=0.25×(+)
=0.25×1
=0.25
(3)1.25×88+12.5×1.2
=12.5×8.8+12.5×1.2
=12.5×(8.8+1.2)
=12.5×10
=125
(4)
=24÷(﹣2)
=24÷
=36
19.【解答】解:13.5÷[1.5×(1.07+1.93)]
=13.5÷[1.5×3]
=13.5÷4.5
=3
2.94×+4.06÷2
=×(2.94+4.06)
=
=3
=+()
=2+1
=3
20.【解答】解:(1)6.4×101
=6.4×(100+1)
=6.4×100+6.4
=640+6.4
=646.4
(2)(0.35﹣0.2)÷5%
=0.15÷0.05
=3
(3)×[﹣()]
=×[﹣(﹣)]
=×[﹣]
=×[﹣]
=×
=
21.【解答】解:(1)×3.2+5.6×0.5+1.2×50%
=0.5×(3.2+5.6+1.2)
=0.5×10
=5
(2)(51×68×78)÷(17×34×13)
=51×68×78÷17÷34÷13
=(51÷17)×(68÷34)×(78÷13)
=3×2×6
=36
(3)÷{(+)×}
=÷[×]
=
=
(4)3.7+5.2+6.3+0.8
=(3.7+6.3)+(5.2+0.8)
=10+6
=16
22.【解答】解:(1)11.2﹣3.6﹣6.4
=11.2﹣(3.6+6.4)
=11.2﹣10
=1.2
(2)
=+
=
(3)10.4××0.4
=(10.4﹣0.4)×
=10×
=4
23.【解答】解:(1)÷+×
=×+×
=(+)×
=1×
=
(2)4×1.25×2.5÷12.5%
=4×2.5×(1.25÷12.5%)
=10×10
=100
(3)102×99
=(100+2)×99
=100×99+2×99
=9900+198
=10098
24.【解答】解:(1)17.35﹣3.25﹣2.75
=17.3﹣(3.25+2.75)
=17.3﹣6
=11.3
(2)÷[(0.75﹣)×]
=÷[(﹣)×]
=÷[×]
=×
=5
(3)8.5÷+7.5×75%+
=8.5×0.75+7.5×0.75+0.75
=(8.5+7.5+1)×0.75
=17×0.75
=12.75
(4)0.25×3.2×12.8
=0.25×4×0.8×12.8
=1×0.8×12.8
=10.24
25.【解答】解:(1)32.4﹣5.72﹣4.28
=32.4﹣(5.72+4.28)
=32.4﹣10
=22.4
(2)3.28×37+6.4×32.8﹣32.8%
=3.28×37+64×3.28﹣32.8%
=3.28×(37+64﹣1)
=3.28×100
=328
(3)18×21×(+)
=18×21×+18×21×
=21+36
=57
(4)8××12.5%×
=(8×12.5%)×(×)
=1×
=
26.【解答】解:(1)6.67+16.67+3.33﹣6.67
=(6.67﹣6.67)+(16.67+3.33)
=0+20
=20
(2)88×+13×75%﹣0.75
=(88+13﹣1)×0.75
=100×0.75
=75
(3)÷[×(﹣)]
=÷[×]
=÷
=1.2
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