五年级上册数学简便计算题(五年级上册数学简便计算题练习)
五年级上册数学简便计算题(五年级上册数学简便计算题练习)

五年级上册数学简便计算题

1、56+31+24

2、615+475+125

3、125×64

4、 89+101+111

5、24+127+476+573

6、400-273-127

7、327+(96-127)

8、70×98

9、442-103-142

10、999+99+9

11、67×5×2

12、25×(78×4)

13、72×125

14、9000÷125÷8

15、400÷25

16、25×36

17、103×27

18、76×102

19、3600÷25÷4

20、99×35

21、(25+12)×4

22、56×27+27×44

23、56×99+56

24、125×25×8×4

25、25×32×125

附答案

1、56+31+24 =(56+24)+31 =80+31 =111

2、615+475+125 =615+(475+125) =615+600 =1215

3、125×64 =125×8×8 =1000×8 =8000

4、 89+101+111 =101+(89+111) =101+200 =301

5、24+127+476+573 =(24+476)+(127+573) =500+700 =1200 6、400-273-127 =400-(273+127) =400-400 =0

7、327+(96-127) =327-127+96 =200+96 =296

8、70×98 =70×(100-2) =7000-140 =6860 9、

442-103-142 =442-142-103 =300-103 =197

10、999+99+9 =1000+100+10-3 =1110-3 =1107

11、67×5×2 =67×(5×2) =67×10 =670

12、25×(78×4) =25×4×78 =100×78 =7800

13、72×125 =9×(8×125) =9×1000 =9000

14、9000÷125÷8 =9000÷(125×8) =9000÷1000 =9

15、400÷25 =400÷100×4 =4×4 =16

16、25×36 =25×4×9 =100×9 =900

17、103×27 =(100+3)×27 =2700+81 =2781

18、76×102 =76×(100+2) =7600+152 =7752

19、3600÷25÷4 =3600÷(25×4) =3600÷100 =36

20、99×35 =(100-1)×35 =3500-35 =3465

21、(25+12)×4 =25×4+12×4 =100+48 =148

22、56×27+27×44 =(56+44)×27 =100×27 =2700

23、56×99+56 =56×(99+1) =56×100 =5600

24、125×25×8×4 =125×8×(25×4) =1000×100 =100000

25、25×32×125 =(25×4)×(8×125) =100×1000 =100000

五年级上册,简便运算20道题

五年级上册简便算法题

10÷3.14-6.86÷3.14

37.68÷0.25÷4

3.75-(2.75-1.3)

37.56-(18+7.56) 0.77÷14

4.5×9.8

0.7÷0.125

0.7÷0.25

2.5×3.2×12.5

12.5×9.6×0.25

3.75-(2.8-1.25)

37.65÷0.4÷0.25

3.125÷8÷0.125

37.65-4.75-3.25

25×6.4×12.5

3.6×0.25

答案

10÷3.14-6.86÷3.14 =(10-6.86)÷3.14 =3.14÷3.14 =1

37.68÷0.25÷4 =37.68÷(0.25×4) =37.68÷1 =37.68

3.75-(2.75-1.3) =3.75-2.75+1.3 =1+1.3 =2.3

37.56-(18+7.56) =37.56-7.56-18 =30-18 =12 0.77÷14 =0.77÷7÷2 =0.11÷2 =0.055 4.5×9.8

=4.5×(10-0.2) =4.5×10-4.5×0.2 =45-0.9 =44.1 0.7÷0.125

=(0.7×8)÷(0.125×8) =0.56÷1 =0.56 0.7÷0.25

=(0.7×4)÷(0.25×4) =2.8÷1 =2.8

2.5×3.2×12.5 =(2.5×0.4)×(8×12.5) =1×100 =100

12.5×9.6×0.25

=(12.5×0.8)×3×(4×0.25) =10×3×1 =30

3.75-(2.8-1.25) =3.75+1.25-2.8

=5-2.8 =2.2

37.65÷0.4÷0.25 3.125÷8÷0.125 37.65-4.75-3.25 25×6.4×12.5 =25×4×0.2×8×12.5 3.6×0.25 =(4-0.4)×0.25 3.4÷9+5.6÷9 = 12.5×32×25 0.36×99+0.36

4×5.6×25 3.12+8.56+6.88+1.44

27.5×3.7-7.5×3.7 125×88

0.36×101 15.6×13.1-12.1×15.6

32.4×0.9+0.1×32.4 25×44

18×12.2+7.8×18 7.8×99+7.8

五年级上册数学简便计算题练习

1、24.6-3.98+5.4-6.02

解析:此题利用加法交换结合律,凑整再计算。步骤如下:

24.6-3.98+5.4-6.02

=(24.6+5.4)-(3.98+6.02)

=30-10

=20

2、27×17/26

解析:此题先用加法分配律,把27转换成(26+1),再利用乘法结合律,使得运算简便。

27×17/26

=(26+1)×17/26

=26×17/26+1×17/26

五年级上册数学简便计算题苏教版

(1)2.5*32*0.125

=(2.5*4)*(8*0.125)

=10*1

=10

(2)3.5-7+6.5

=3.5+6.5-7

=3

(3)1.2×2.5+0.8×2.5

=2.5(1.2+0.8)

=25

(4)8.9×1.25-0.9×1.25

=1.25(8.9-0.9)

=10

(5)12.5×7.4×0.8

=12.5×0.8×7.4

=74

(6)6.5×9.5+6.5×0.5

=6.5×(9.5+0.5)

=6.5×10

=65

(7)0.35×1.6+0.35×3.4

=0.35*(1.6+3.4)

=0.35*5

=1.75

(8)6.72-3.28-1.72

=6.75-(3.28+1.72)

=6.75-5

=1.75

(9)0.45+6.37+4.55

=0.45+4.55+6.37

=5+6.37

=11.37

(10)28×12.5-12.5×20

=(28-20)*12.5

=8*12.5

=100

(11)23.65-(3.07+3.65)

=23.65-3.65-3.07

=20-3.07

=16.93

(12)(4+0.4×0.25)8×7×1.25

=(4+1)*7*10

=5*7*10

=350

(13)1.65×99+1.65

=1.65*(99+1)

=1.65*100

=165

(14)27.85-(7.85+3.4)

=27.85-7.85+3.4

=20+3.4

=23.4

(15)48×1.25+50×1.25×0.2×8

7.8×9.9+0.78

=7.8*(9.9+0.1)

=7.8*10

=78

(16)4.8×46+4.8×54

=(46+54)*4.8

=100*4.8

=480

(17)673-327-173

=673-(327+173)

=673-500

=173

(18)4.44*2.5

=1.11*(4*2.5)

=1.11*10

=11.1

(19)3.5÷1.4

=(3.5÷0.7)÷(1.4÷0.7)

=5÷2

=2.5

(20)1+2+3+4+5……+99+100

=(1+99)+(2+98)+(3+97)+.+(49+51)+50

=(100÷2-1)*100+50

=4900+50

=4950

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五年级上册数学简便计算题

1、56+31+24

2、615+475+125

3、125×64

4、 89+101+111

5、24+127+476+573

6、400-273-127

7、327+(96-127)

8、70×98

9、442-103-142

10、999+99+9

11、67×5×2

12、25×(78×4)

13、72×125

14、9000÷125÷8

15、400÷25

16、25×36

17、103×27

18、76×102

19、3600÷25÷4

20、99×35

21、(25+12)×4

22、56×27+27×44

23、56×99+56

24、125×25×8×4

25、25×32×125

附答案

1、56+31+24 =(56+24)+31 =80+31 =111

2、615+475+125 =615+(475+125) =615+600 =1215

3、125×64 =125×8×8 =1000×8 =8000

4、 89+101+111 =101+(89+111) =101+200 =301

5、24+127+476+573 =(24+476)+(127+573) =500+700 =1200 6、400-273-127 =400-(273+127) =400-400 =0

7、327+(96-127) =327-127+96 =200+96 =296

8、70×98 =70×(100-2) =7000-140 =6860 9、

442-103-142 =442-142-103 =300-103 =197

10、999+99+9 =1000+100+10-3 =1110-3 =1107

11、67×5×2 =67×(5×2) =67×10 =670

12、25×(78×4) =25×4×78 =100×78 =7800

13、72×125 =9×(8×125) =9×1000 =9000

14、9000÷125÷8 =9000÷(125×8) =9000÷1000 =9

15、400÷25 =400÷100×4 =4×4 =16

16、25×36 =25×4×9 =100×9 =900

17、103×27 =(100+3)×27 =2700+81 =2781

18、76×102 =76×(100+2) =7600+152 =7752

19、3600÷25÷4 =3600÷(25×4) =3600÷100 =36

20、99×35 =(100-1)×35 =3500-35 =3465

21、(25+12)×4 =25×4+12×4 =100+48 =148

22、56×27+27×44 =(56+44)×27 =100×27 =2700

23、56×99+56 =56×(99+1) =56×100 =5600

24、125×25×8×4 =125×8×(25×4) =1000×100 =100000

25、25×32×125 =(25×4)×(8×125) =100×1000 =100000

五年级上册,简便运算20道题

五年级上册简便算法题

10÷3.14-6.86÷3.14

37.68÷0.25÷4

3.75-(2.75-1.3)

37.56-(18+7.56) 0.77÷14

4.5×9.8

0.7÷0.125

0.7÷0.25

2.5×3.2×12.5

12.5×9.6×0.25

3.75-(2.8-1.25)

37.65÷0.4÷0.25

3.125÷8÷0.125

37.65-4.75-3.25

25×6.4×12.5

3.6×0.25

答案

10÷3.14-6.86÷3.14 =(10-6.86)÷3.14 =3.14÷3.14 =1

37.68÷0.25÷4 =37.68÷(0.25×4) =37.68÷1 =37.68

3.75-(2.75-1.3) =3.75-2.75+1.3 =1+1.3 =2.3

37.56-(18+7.56) =37.56-7.56-18 =30-18 =12 0.77÷14 =0.77÷7÷2 =0.11÷2 =0.055 4.5×9.8

=4.5×(10-0.2) =4.5×10-4.5×0.2 =45-0.9 =44.1 0.7÷0.125

=(0.7×8)÷(0.125×8) =0.56÷1 =0.56 0.7÷0.25

=(0.7×4)÷(0.25×4) =2.8÷1 =2.8

2.5×3.2×12.5 =(2.5×0.4)×(8×12.5) =1×100 =100

12.5×9.6×0.25

=(12.5×0.8)×3×(4×0.25) =10×3×1 =30

3.75-(2.8-1.25) =3.75+1.25-2.8

=5-2.8 =2.2

37.65÷0.4÷0.25 3.125÷8÷0.125 37.65-4.75-3.25 25×6.4×12.5 =25×4×0.2×8×12.5 3.6×0.25 =(4-0.4)×0.25 3.4÷9+5.6÷9 = 12.5×32×25 0.36×99+0.36

4×5.6×25 3.12+8.56+6.88+1.44

27.5×3.7-7.5×3.7 125×88

0.36×101 15.6×13.1-12.1×15.6

32.4×0.9+0.1×32.4 25×44

18×12.2+7.8×18 7.8×99+7.8

五年级上册数学简便计算题练习

1、24.6-3.98+5.4-6.02

解析:此题利用加法交换结合律,凑整再计算。步骤如下:

24.6-3.98+5.4-6.02

=(24.6+5.4)-(3.98+6.02)

=30-10

=20

2、27×17/26

解析:此题先用加法分配律,把27转换成(26+1),再利用乘法结合律,使得运算简便。

27×17/26

=(26+1)×17/26

=26×17/26+1×17/26

五年级上册数学简便计算题苏教版

(1)2.5*32*0.125

=(2.5*4)*(8*0.125)

=10*1

=10

(2)3.5-7+6.5

=3.5+6.5-7

=3

(3)1.2×2.5+0.8×2.5

=2.5(1.2+0.8)

=25

(4)8.9×1.25-0.9×1.25

=1.25(8.9-0.9)

=10

(5)12.5×7.4×0.8

=12.5×0.8×7.4

=74

(6)6.5×9.5+6.5×0.5

=6.5×(9.5+0.5)

=6.5×10

=65

(7)0.35×1.6+0.35×3.4

=0.35*(1.6+3.4)

=0.35*5

=1.75

(8)6.72-3.28-1.72

=6.75-(3.28+1.72)

=6.75-5

=1.75

(9)0.45+6.37+4.55

=0.45+4.55+6.37

=5+6.37

=11.37

(10)28×12.5-12.5×20

=(28-20)*12.5

=8*12.5

=100

(11)23.65-(3.07+3.65)

=23.65-3.65-3.07

=20-3.07

=16.93

(12)(4+0.4×0.25)8×7×1.25

=(4+1)*7*10

=5*7*10

=350

(13)1.65×99+1.65

=1.65*(99+1)

=1.65*100

=165

(14)27.85-(7.85+3.4)

=27.85-7.85+3.4

=20+3.4

=23.4

(15)48×1.25+50×1.25×0.2×8

7.8×9.9+0.78

=7.8*(9.9+0.1)

=7.8*10

=78

(16)4.8×46+4.8×54

=(46+54)*4.8

=100*4.8

=480

(17)673-327-173

=673-(327+173)

=673-500

=173

(18)4.44*2.5

=1.11*(4*2.5)

=1.11*10

=11.1

(19)3.5÷1.4

=(3.5÷0.7)÷(1.4÷0.7)

=5÷2

=2.5

(20)1+2+3+4+5……+99+100

=(1+99)+(2+98)+(3+97)+.+(49+51)+50

=(100÷2-1)*100+50

=4900+50

=4950

五年级上册数学简便计算题(五年级上册数学简便计算题练习)