分數,編成3道四則混合表示式題並計算幫幫忙

2021-03-03 20:34:15 字數 6635 閱讀 3864

1樓:匿名使用者

(1/2+1/4+3/8)×2/3

=9/8×2/3

=4/3

(1/2÷1/4-2/3)×3/8

=4/3×3/8

=1/2

(1/2-1/4)÷3/8-2/3

=2/3-2/3=0

2樓:琴硯

1/2乘以

內2/3+1/4-3/8 1/2+2/3*1/4除以容3/8 1/2+2/3-1/4乘以3/8=1/3+1/4-3/8 =1/2+1/6除以3/8 =1/2+2/3-3/32

=7/12-3/8 =1/2+4/9 =96/182+64/182-32/182

=14/24-12/24 =17/18 =

=1/12

六年級數學,10道簡便計算題帶答案謝謝哦∩_∩

3樓:匿名使用者

我來答 檢視全部11個回答

凌月霜丶

知道合夥人教育行家 推薦於 2018-02-24(1)2.64×1.7-2.64×0.7

=2.64×(1.7-0.7)

=2.64×1

=2.64

(2)31.5×1.07-3.15×0.7=3.15×10.7-3.15×0.7

=3.15×(10.7-0.7)

=3.15×10

=31.5

(3)2.7×5.7-2.7+5.3×2.7=2.7×(5.7-1+5.3)

=2.7×10

=27(4)0.625÷0.125×0.8=(0.625×0.8)×8÷(0.128×8)=0.5×8÷1

=4(5)18.6×6.1+3.9×18.6=18.6×(6.1+3.9)

=18.6×10

=186

(6)1.3579+3.5791+5.7913+7.9135+9.1357

=(1+3+5+7+9)×1.1111

=25×1.1111

=27.7775

(7)52.5x2.9+5.45

=5.25x29+5.25+0.2

=5.25×(29+1)+0.2

=5.25×30+0.2

=157.5+0.3

=157.7

(8)0.92x15+0.08x15

=(0.92+0.08)×15

=1×15

=15(9)0.72×1.25×2.5

=0.9×(0.8×1.25)×2.5

=0.9×1×2.5

=2.25

(10)400.6x7-2003x0.4

=200.3x14-200.3x4

=200.3×(14-4)

=200.3×10

=2003

4樓:凌月霜丶

(1)2.64×1.7-2.64×0.7

=2.64×(1.7-0.7)

=2.64×1

=2.64

(2)31.5×1.07-3.15×0.7=3.15×10.7-3.15×0.7

=3.15×(10.7-0.7)

=3.15×10

=31.5

(3)2.7×5.7-2.7+5.3×2.7=2.7×(5.7-1+5.3)

=2.7×10

=27(4)0.625÷0.125×0.8=(0.625×0.8)×8÷(0.128×8)=0.5×8÷1

=4(5)18.6×6.1+3.9×18.6=18.6×(6.1+3.9)

=18.6×10

=186

(6)1.3579+3.5791+5.7913+7.9135+9.1357

=(1+3+5+7+9)×1.1111

=25×1.1111

=27.7775

(7)52.5x2.9+5.45

=5.25x29+5.25+0.2

=5.25×(29+1)+0.2

=5.25×30+0.2

=157.5+0.3

=157.7

(8)0.92x15+0.08x15

=(0.92+0.08)×15

=1×15

=15(9)0.72×1.25×2.5

=0.9×(0.8×1.25)×2.5

=0.9×1×2.5

=2.25

(10)400.6x7-2003x0.4

=200.3x14-200.3x4

=200.3×(14-4)

=200.3×10

=2003

5樓:匿名使用者

152×

3÷2=456÷2

=228

43×12×6

=516×6

3096

200+25×33

=200+825

=1025

(25+26)×48

=51×48

=2448

576-(290+107)

=576-397

=179

腦子已短缺,只有這麼多

6樓:匿名使用者

62×7.1+2.9,

=440.2+2.9,

=443.1;

4.2×0.25,

=(4+0.2)×0.25,

=4×0.25+0.2×0.25,

=1+0.05,

=1.05;

5.2×4.3+0.8×4.3,

=(5.2+0.8)×4.3,

=6×4.3,

=25.8.

8.5+1.5÷0.25×4,

=8.5+6×4,

=8.5+24,

=32.5.

0.25×0.8+2.5%

=0.2+2.5%,

=0.225;

32×125×2.5,

=4×8×125×2.5,

=8×125×(4×2.5),

=1000×10,

=10000;

94÷(6.84×8.5-31.46÷0.55),=94÷(58.14-57.2),

=94÷0.94,

=100.

13÷0.4÷2.5,

=13÷(0.4×2.5),

=13÷1,

=13;

1.25×2.5×0.8,

=(1.25×0.8)×2.5,

=1×2.5,

=2.5;

1.5×101-1.5,

=1.5×(101-1),

=1.5×100,

=150;

4.8×101,

=4.8×100+4.8×1,

=480+4.8,

=484.8.

3.25×4.7-7.8,

=15.275-7.8,

=7.475;

0.57+0.43×0.24,

=0.57+0.1032,

=0.6732.

945÷5÷3,

=189÷3,

=63;

152×3÷2,

=456÷2,

=228;

43×12×6,

=516×6,

=3096.

200+25×33,

=200+825,

=1025;

(25+26)×48,

=51×48,

=2448.

576-(290+107),

=576-397,

=179;

649+124-556,

=773-556,

=217.

4.82-5.2÷0.8×0.6,

=4.82-6.5×0.6,

=4.82-3.9,

=0.92.

我這兒有哦,這麼多,不知道你夠不夠

7樓:新野旁觀者

1.3/7 × 49/9 - 4/3

2.8/9 × 15/36 + 1/27

3.12× 5/6 – 2/9 ×3

4.8× 5/4 + 1/4

5.6÷ 3/8 – 3/8 ÷6

6.4/7 × 5/9 + 3/7 × 5/97.5/2 -( 3/2 + 4/5 )

8.7/8 + ( 1/8 + 1/9 )9.9 × 5/6 + 5/6

10.3/4 × 8/9 - 1/3

11.7 × 5/49 + 3/14

12.6 ×( 1/2 + 2/3 )

13.8 × 4/5 + 8 × 11/514.31 × 5/6 – 5/6

15.9/7 - ( 2/7 – 10/21 )16.5/9 × 18 – 14 × 2/717.

4/5 × 25/16 + 2/3 × 3/418.14 × 8/7 – 5/6 × 12/1519.17/32 – 3/4 × 9/2420.

3 × 2/9 + 1/3

21.5/7 × 3/25 + 3/7

22.3/14 ×× 2/3 + 1/6

23.1/5 × 2/3 + 5/6

24.9/22 + 1/11 ÷ 1/2

25.5/3 × 11/5 + 4/3

26.45 × 2/3 + 1/3 × 1527.7/19 + 12/19 × 5/628.1/4 + 3/4 ÷ 2/3

29.8/7 × 21/16 + 1/2

30.101 × 1/5 – 1/5 × 21

8樓:星辰

一年級數學十道簡便計算時這個六年級的數學也是說簡單也簡單說難也很難現在的孩子的質量越來越提高了

9樓:匿名使用者

題目:62.1x6+5x62.1-62.1答案:=62.1x(6+5-1)

=62.1×10

=621

10樓:艷陽天

第四題的0.128×8不等於1因該是0.125×8

11樓:匿名使用者

47x29十47x71

=47x(29+71)

=47x100

=4700

92x99+92

=(99+1)x92

=100x92

=9200

210x23

=(200+1)x23

=200x23+23x1

=4600+23

=4623

12樓:匿名使用者

來個方程

x-2/7x=3/4

?解:5/7x=3/4

x=3/4×7/5

x=21/20

謝謝您?!!!!!!!

13樓:留下陪我生活

非常完美,但是有一點點批漏,繼續加油!!!?????????

14樓:匿名使用者

沒有a(•̀へ •́ ╮ )

15樓:匿名使用者

其實自己寫幾道就可以了

16樓:匿名使用者

1十1二田,1一1二日

17樓:龐傑

謝謝你給我給的這些題

18樓:匿名使用者

(1)2.64×1.7-2.64×0.7

=2.64×(1.7-0.7)

=2.64×1

=2.64

(2)31.5×1.07-3.15×0.7=3.15×10.7-3.15×0.7

=3.15×(10.7-0.7)

=3.15×10

=31.5

(3)2.7×5.7-2.7+5.3×2.7=2.7×(5.7-1+5.3)

=2.7×10

=27(4)0.625÷0.125×0.8=(0.625×0.8)×8÷(0.128×8)=0.5×8÷1

=4(5)18.6×6.1+3.9×18.6=18.6×(6.1+3.9)

=18.6×10

=186

(6)1.3579+3.5791+5.7913+7.9135+9.1357

=(1+3+5+7+9)×1.1111

=25×1.1111

=27.7775

(7)52.5x2.9+5.45

=5.25x29+5.25+0.2

=5.25×(29+1)+0.2

=5.25×30+0.2

=157.5+0.3

=157.7

(8)0.92x15+0.08x15

=(0.92+0.08)×15

=1×15

=15(9)0.72×1.25×2.5

=0.9×(0.8×1.25)×2.5

=0.9×1×2.5

=2.25

(10)400.6x7-2003x0.4

=200.3x14-200.3x4

=200.3×(14-4)

=200.3×10

=2003

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