脫式計算,能簡便的要簡便計算14 11 3 1 7 54 2 5 0

2021-03-27 11:05:55 字數 6234 閱讀 4889

1樓:泡沫

(1)14-11.3-1.7,

=14-(11.3+1.7),

=14-13,

=1;(2)54÷2.5÷0.4,

=54÷(2.5×0.4),

=54÷1,

=54;

(3)3.2×0.28+0.28×6.8,=(3.2+6.8)×0.28,

=10×0.28,

=2.8;

(4)80.3-33.3×0.5÷0.37,=80.3-16.65÷0.37,

=80.3-45,

=35.3.

2樓:買群刀仕

3.6÷0.4-1.2×5

=9-6=3

90÷【3.6-1.8】=90/1.8=50

【31.6-11.7】÷2.

5÷0.4=【31.6-11.

7】÷(2.5*0.4)=【31.

6-11.7】÷1=31.7-0.

1-11.7=19.9

3.4×7.8÷3.9=3.4*(7.8÷3.9)=3.4*2=6.8

5.23×4+4.77÷0.25=5.23×4+4.77×4=(5.23+4.77)×4=10×4=40

基本思路就是結合法,分子分母同時放大等倍數

法,再簡單?那就用筆挨個做除法吧!這些很容易理解的,你可以好好的看一下!

脫式計算能簡便就要簡便

3樓:水色燕子

3/7 × 49/9 - 4/3

8/9 × 15/36 + 1/27

12× 5/6 – 2/9 ×3

8× 5/4 + 1/4

6÷ 3/8 – 3/8 ÷6

4/7 × 5/9 + 3/7 × 5/95/2 -( 3/2 + 4/5 )

7/8 + ( 1/8 + 1/9 )

9 × 5/6 + 5/6

3/4 × 8/9 - 1/3

7 × 5/49 + 3/14

6 ×( 1/2 + 2/3 )

8 × 4/5 + 8 × 11/5

31 × 5/6 – 5/6

9/7 - ( 2/7 – 10/21 )5/9 × 18 – 14 × 2/7

4/5 × 25/16 + 2/3 × 3/414 × 8/7 – 5/6 × 12/1517/32 – 3/4 × 9/24

3 × 2/9 + 1/3

5/7 × 3/25 + 3/7

3/14 ×× 2/3 + 1/6

1/5 × 2/3 + 5/6

9/22 + 1/11 ÷ 1/2

5/3 × 11/5 + 4/3

45 × 2/3 + 1/3 × 15

7/19 + 12/19 × 5/6

1/4 + 3/4 ÷ 2/3

8/7 × 21/16 + 1/2

101 × 1/5 – 1/5 × 21

7/8-5/6+11/12

6/7+5/14-1/2

8-17/42-25/42

1-5/9-(2/3+5/9)

5/9-(1/6+1/12)

11/12-2/9+1/12-7/9

7/12+5/6-3/4

4/5-2/3+7/6

2/3+(5/7-5/14)

8/9-(5/6-3/4)

14/15-(1/4+7/30)

29/30-(14/15-3/4)

13/24+7/8+11/24

3-17/18-19/18

7/9+2/3-4/9

5/8+1/2+3/4

19/24+11/12-3/4

14/15+4/5-2/3

13/12-1/2-1/3

4/9-1/6+4/3

6/7-3/14+1/2

1-1/2+3/4

1/2-1/3-1/6

9/11+7/2-9/22

8/9-1/3+5/6

7/12+1/3-1/4

7/25+4/5-1/2

1/4+2/3-1/12

3/8+5/8-1

3/7-1/2+9/14

235 - 135÷18

35 ×153 – 0.6×53

(45 +14 )÷73 +710

10 - 719 - 1219 + 11925×13 ÷52 ×310

13.09-8.12-4.88

12×103-4500÷75

18 ×[12 ÷(35 ×109 )]

(215 +311 )×15×11

37.5+19.5÷2.5×4

6.9+4.8+3.1

0.456+6.22+3.78

15.89+(6.75-5.89)

4.02+5.4+0.98

5.17-1.8-3.2

13.75-(3.75+6.48)

3.68+7.56-2.68

7.85+2.34-0.85+4.66

35.6-1.8-15.6-7.2

3.82+2.9+0.18+9.1

9.6+4.8-3.6

7.14-0.53-2.47

5.27+2.86-0.66+1.63

13.35-4.68+2.65

73.8-1.64-13.8-5.36

47.8-7.45+8.8

0.398+0.36+3.64

15.75+3.59-0.59+14.2566.86-8.66-1.34

0.25×16.2×4

(1.25-0.125)×8

3.6×102

3.72×3.5+6.28×3.5

36.8-3.9-6.1

15.6×13.1-15.6-15.6×2.14.8×7.8+78×0.52

32+4.9-0.9

4.8×100.1

56.5×9.9+56.5

7.09×10.8-0.8×7.09

25.48-(9.4-0.52)

4.2÷3.5

320÷1.25÷8

18.76×9.9+18.76

3.52÷2.5÷0.4

3.9-4.1+6.1-5.9

5.6÷3.5

9.6÷0.8÷0.4

4.2×99+4.2

17.8÷(1.78×4)

0.49÷1.4

1.25×2.5×32

3.65×10.1

15.2÷0.25÷4

0.89×100.1

146.5-(23+46.5)

3.83×4.56+3.83×5.44

4.36×12.5×8

9.7×99+9.7

27.5×3.7-7.5×3.7

8.54÷2.5÷0.4

0.65×101

3.2×0.25×12.5

(45.9-32.7)÷8÷0.125

3.14×0.68+31.4×0.032

5.6÷1.25÷0.8÷2.5÷0.4

7.2×0.2+2.4×1.4

8.9×1.01

7.74×(2.8-1.3)+1.5×2.263.9×2.7+3.9×7.3

18-1.8÷0.125÷0.8

12.7×9.9+1.27

21×(9.3-3.7)-5.6

15.02-6.8-1.02

5.4×11-5.4

2.3×16+2.3×23+2.3

9.43-(6.28-1.57)

3.65×4.7-36.5×0.37

46×57+23×86

13.7×0.25-3.7÷4

2.22×9.9+6.66×6.7

101×0.87-0.91×87

10.7×16.1-15.1×10.7

0.79×199

4.8+8.63+5.2+0.37

5.93+0.19+2.81

1.76+0.195+3.24

2.35+1.713+0.287+7.651.57+0.245+7.43

6.02+3.6+1.98

0.134+2.66+0.866

1.27+3.9+0.73+16.1

7.5+4.9-6.5

3.07-0.38-1.62

1.29+3.7+2.71+6.3

8-2.45-1.55

3.25+1.79-0.59+1.75

23.4-0.8-13.4-7.2

0.32×403

3.2+0.36+4.8+1.64

1.23+3.4-0.23+6.6

0.25×36

12.7-(3.7+0.84)

36.54-1.76-4.54

0.25×0.73×4

7.6×0.8+0.2×7.6

0.85×199

0.25×8.5×4

1.28×8.6+0.72×8.6

12.5×0.96×0.8

10.4-9.6×0.35

0.8×(4.3×1.25)

3.12+3.12×99

28.6×101-28.6

0.86×15.7-0.86×14.7

2.4×102

2.31×1.2×0.5

14-7.32-2.68

2.64+8.67+7.36+11.33

70÷28

(2.5-0.25)×0.4

9.16×1.5-0.5×9.16

3.6-3.6×0.5

63.4÷2.5÷0.4

4.9÷1.4

3.9÷(1.3×5)

(7.7+1.54)÷0.7

2.5×2.4

2.7÷45

15÷(0.15×0.4)

0.35×1.25×2×0.8

32.4×0.9+0.1×32.4

15÷0.25

4.5÷1.8

4.2÷3.5

930÷0.6÷5

脫式計算能用簡便計算的要簡算.(1)310+4.25+3.7+134(2)0.125×3.2×25(3)17×44+54×17(4)7.8÷

4樓:手機使用者

(1)3

10+4.25+3.7+134=3

10+3.7+4.25+13

4=(3

10+3.7)+(4.25+134)

=4+6

=10;

(2)0.125×3.2×25

=0.125×8×0.4×25

=(0.125×8)×版(權0.4×25)=1×10

=10;

(3)1

7×44+54×17=1

7×(44+54)=17

×98=14;

(4)7.8÷〔32×(1-5

8)+3.6〕

=7.8÷〔32×3

8+3.6〕

=7.8÷〔12+3.6〕

=7.8÷15.6

=0.5;

(5)5

6÷〔3

4×(79-1

3)〕=56

÷〔34×49

〕=56÷1

3=2.5.

脫式計算,能簡便計算的要簡算. (1)13÷0.4÷2.5 (2)64×4.5+36×4.5 (3)1.25×2.5×0.8

5樓:手機使用者

(1)13÷0.4÷2.5,

=13÷(0.4×

回2.5),

=13÷1,

=13;

(2)64×4.5+36×4.5,

=(64+36)×答4.5,

=100×4.5,

=450;

(3)1.25×2.5×0.8,

=1.25×0.8×2.5,

=1×2.5,

=2.5;

(4)1.5×101-1.5,

=1.5×(101-1),

=1.5×100,

=150;

(5)14.64+3.7×2.8,

=14.64+10.36,

=25;

(6)2.8×7.3+0.27×28,

=2.8×7.3+2.7×2.8,

=2.8×(7.3+2.7),

=2.8×10,

=28.

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