400道分數加減脫式計算要答案,400道分數加減脫式計算要答案

2021-05-01 15:50:57 字數 6717 閱讀 1496

1樓:新野旁觀者

4/7+1/14-1/2

=8/14+1/14-7/14

=2/14

=1/7

5/3-3/8-5/8

=5/3-(3/8+5/8)

=5/3-1

=2/3

3/5+3/11+7/5+11

=(3/5+7/5)+11+3/11

=2+11+2/11

=13又2/11

3/4-{5/6-1/3}

=3/4-(5/6-2/6)

=3/4-1/2

=3/4-2/4

=1/4

2樓:

3/15加5/3減3/5

3樓:匿名使用者

1、1-1/3

2、7/8-1/8

3、1-3/6

4、1-1/4

5、9/25+7/25

6、25/36+11/36

7、29/33+13/66

8、5/9+7/18

9、9/10+13/25

10、7/15+7/20

11、5/9+2/7

12、5/9-7/18

13、6/5/2。4

14、2/[13/10]

15、6/9+1/9

16、7/9-4/9

17、6/9-1/4

18、3/6+3/7

19、5/8-1/2

20、8/9+2/3

21、9/25+7/25

22、25/36+11/36

23、29/33+13/66

24、5/9+7/18

25、9/10+13/25

26、7/15+7/20

27、5/9+2/7

28、5/9-7/18

29、1/2+1/3-1/4+1/5-1/6=30、3/4-3/5+4/5-4/6+5/6-5/7=31、1/2-1/2-1/2+1/2=

32、1/100000+3-32/867=33、1+1/2-1/3=

34、67/68+34/35-23/24=35、89/90+123/124-234/235=

40道簡便計算和40道脫式計算(分數加減法,帶答案)

4樓:數學愛好者

簡便計算例子演示38×12-12×12+12×40解題思路:四則運算規則(按順序計算,先算乘除後算加減,有括號先算括號,有乘方先算乘方)即脫式運算(遞等式計算)需在該原則前提下進行

解題過程:

38×12-12×12+12×40

=(38-12+40)×12

=66×12

=792

擴充套件資料=>豎式計算-計算結果:先將兩乘數末位對齊,然後分別使用第二個乘數,由末位起對每一位數依次乘上一個乘數,最後將所計算結果累加即為乘積,如果乘數為小數可先將其擴大相應的倍數,最後乘積在縮小相應的倍數;

解題過程:

步驟一:2×66=132

步驟二:1×66=660

根據以上計算結果相加為792

存疑請追問,滿意請採納

5樓:花緣

簡便計算:

3/8+7/10+5/8=17/10

7/8-(1/8+3/4)=0

4/7+1/6-4/7=1/6

2-7/9-2/9=1

3/5+7/8+2/5=15/8

7/9-(1/9+1/3)=1/3

1/4+(2/5+3/4)=7/5

5/6-3/10+1/6-7/10=0

脫式計算:

3/4+1/6-2/3=1/4

7/8-1/4+4/9=77/72

1-1/3+2/7=20/21

1/2+4/5-3/10=1

5/6-(2/3-1/9)=5/18

9/10-(3/4+1/8)=1/40

1/2+2/3-3/4=5/12

7/8-1/6+1/4=23/24

1-(3/4-2/9)=17/36

9/10-1/5-1/2=1/5

1/4+3/7+1/2=33/28

7/8-(2/3+1/6)=1/24

1-(1/3+3/5)=1/15

1/2+1/4+1/3=13/12

7/8+1/4+1/2=5/8

5/7-(4/7+1/9)=2/63

1-1/4-1/2=1/4

3/4-1/6-1/3=1/4

3/10+1/4+2/5=19/20

2/3+1/6+1/12=11/12

1-1/4-2/5=7/20

1/2+1/9+1/12=25/36

6樓:匿名使用者

30+50÷2=30+25=55

50道五年級脫式計算題帶過程和答案,有答案和過程的加分,謝謝了。 15

7樓:匿名使用者

50道五年級脫式計算題帶過

8樓:匿名使用者

下次自己做題,我可不幫你了!

0.4×125×25×0.8

=(0.4×25)×e68a84e8a2ad62616964757a686964616f31333433616234(125×0.8)

=10×100=1000

1.25×(8+10)

=1.25×8+1.25×10

=10+12.5=22.5

9123-(123+8.8)

=9123-123-8.8

=9000-8.8

=8991.2

1.24×8.3+8.3×1.76

=8.3×(1.24+1.76)

=8.3×3=24.9

9999×1001

=9999×(1000+1)

=9999×1000+9999×1

=10008999

14.8×6.3-6.

3×6.5+8.3×3.

7=(14.8-6.5)×6.

3+8.3×3.7=8.

3×6.3+8.3×3.

78.3×(6.3+3.7)

=8.3×10

=831.24+0.78+8.76

=(1.24+8.76)+0.78

=10+0.78

=10.78

933-157-43

=933-(157+43)

=933-200

=733

4821-998

=4821-1000+2

=3823

32×125×25

=4×8×125×25

=(4×25)×(8×125)

=100×1000

=100000

9000÷72×(1.25×0.7×8)

=9000÷72×7

=125×7

=875

1.25×(8+10)

=1.25×8+1.25×10

=10+12.5

=22.5

1.24+0.78+8.76

=(1.24+8.76)+0.78

=10+0.78

=10.78

1/2-(4/5-1/2)

=1/2+1/2-4/5

=1-4/5

=1/5

4800÷25÷4

=4800÷(25x4)

=4800÷100

=4800÷100

=482/5-(3/8-3/5)

=2/5+3/5-3/8

=1-3/8

=5/8

3/4-(3/7-1/4)

=3/4+1/4-3/7

=1-3/7

=4/7

3.2x0.125x2.5

=0.125x8x(0.4x2.5)

=1x1

=1 0.4×125×25×0.8

=(0.4×25)×(125×0.8)

=10×100

=1000

1.25×(8+10)

=1.25×8+1.25×10

=10+12.5

=22.5

9123-(123+8.8)

=9123-123-8.8

=9000-8.8

=8991.2

1.24×8.3+8.3×1.76

=8.3×(1.24+1.76)

=8.3×3

=24.9

9999×1001

=9999×(1000+1)

=9999×1000+9999×1

=10008999

14.8×6.3-6.

3×6.5+8.3×3.

7=(14.8-6.5)×6.

3+8.3×3.7=8.

3×6.3+8.3×3.

7=8.3×(6.3+3.7)

=8.3×10

=831.24+0.78+8.76

=(1.24+8.76)+0.78

=10+0.78

=10.78

933-157-43

=933-(157+43)

=933-200

=733

4821-998

=4821-1000+2

=3823

32×125×25

=4×8×125×25

=(4×25)×(8×125)

=100×1000

=100000

1.8+18÷1.5-0.5×0.3

=1.8+12-0.15=13.8-0.15=13.65 6.5×8+3.5×8-47=52+28-47=80-47=33

3.7x2.56-2.3

=9.472-2.3

=7.172

1.24+0.78+8.76

=(1.24+8.76)+0.78

=10+0.78

=10.78

1/2-(4/5-1/2)

=1/2+1/2-4/5=1-4/5

=1/5

4800÷25÷4

=4800÷(25x4)

=4800÷100

=482/5-(3/8-3/5)

=2/5+3/5-3/8

=1-3/8

=5/8

3/4-(3/7-1/4)

=3/4+1/4-3/7

=1-3/7

=4/7

3.2x0.125x2.5

=0.125x8x(0.4x2.5)

=1x1

=10.4×125×25×0.8

=(0.4×25)×(125×0.8)

=10×100

=1000

1.25×(8+10)

=1.25×8+1.25×10

=10+12.5

=22.5

9123-(123+8.8)

=9123-123-8.8

=9000-8.8

=8991.2

1.24×8.3+8.3×1.76

=8.3×(1.24+1.76)

=8.3×3

=24.9

61-(1.25+2.5×0.7)

=61-3

=58[(10-0.8)+9.85]-2÷0.125=19.05-2÷0.125

=19.05-16

=3.05

408-12×24

=408-288

=120

(46+28)×60

=74x60

= 4440

42×50-17

= 2100-17

= 2083

32+105÷5

=32+21

= 53

420×(327-238)

= 420x89

= 37380

(4121+2389)÷7

=6510÷7

= 930

3.416÷(0.016×35)

= 3.416 ÷0.56

= 6.1

0.8×[(10-6.76)÷1.2]

= 0.8 x(3.24÷1.2)

= 0.8 x 2.7

= 2.16

5.67×0.2-0.62

= 1.134-0.62

= 0.514

0.4×0.7×0.25

=0.4x0.25x0.7

=0.1×0.7

= 0.07

9樓:風兒在飄搖

我這隻有一道題,待會兒別怪我沒跟你們說。45÷5+27 等於13+27 等於40

10樓:匿名使用者

不用客氣,只要知道的就告訴你,我們不知道的,你只能等著下一個問你。

11樓:匿名使用者

對不起,給你說幾道就行了,因為給你說了,我們還要因為這個給你算題呀,我給你推版送一個,用作權業幫或者快對作業就行0.46×0.25×4

=0.25×4×0.4

=1×0.4

=0.4

132+12×37

=132+314

=446

319+32×56

=319+1512

=1831

250+23+38

=250+624

=874

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