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100道脱式简便计算 脱式计算,能简算的要简算.①2013×0.25+2013×0.75②1.25×32×0.25③12×( 5 6 + 1

火烧 2022-07-26 22:56:26 1045
脱式计算,能简算的要简算.①2013×0.25+2013×0.75②1.25×32×0.25③12×( 5 6 + 1 脱式计算,能简算的要简算.①2013×0.25+2013×0.75②1.25×3

脱式计算,能简算的要简算.①2013×0.25+2013×0.75②1.25×32×0.25③12×( 5 6 + 1  

脱式计算,能简算的要简算.①2013×0.25+2013×0.75②1.25×32×0.25③12×( 5 6 + 1, 脱式计算,能简算的要简算.①2013×0.25+2013×0.75 &n...

①2013×0.25+2013×0.75
=2013×(0.25+0.75)
=2013×1
=2013;

②1.25×32×0.25
=1.25×(8×4)×0.25
=(1.25×8)×(4×0.25)
=10×1
=10;

③12×(

5 6

+

1 2

-

1 3


=12×

5 6

+12×

1 2

-12×

1 3


=10+6-4
=16-4
=12;

2 3

+(

5 6

-

3 4

)÷

3 8

=

2 3

+

1 12

÷

3 8

=

2 3

+

2 9

=

8 9

脱式计算,能简算的要简算,1.25*0.25*61*16

1.25×0.25×61×16
=﹙1.25×8﹚×﹙0.25×2﹚×61
=10×0.5×61
=305

脱式计算,能简算的要简算.(1)0.6+6×32×0.25(2) ( 4 5 + 1 4 ) ÷ 7

(1)0.6+6×32×0.25,
=0.6+(6×8)×(4×0.25),
=0.6+48×1,
=0.6+48,
=48.6;

(2) (

4 5

+

1 4

) ÷

7 3

-

1 4


=

21 20

×

3 7

-

1 4


=

9 20

-

1 4


=

1 5

(3)36×(

7 9

+

1 4

-

5 6

),
=36×

7 9

+36×

1 4

-36×

5 6


=28+9-30,
=7;

(4)

8 9

×[

7 8

-(

7 16

+

1 8

)],
=

8 9

×[

7 8

-

7 16

+

1 8

],
=

8 9

×[

7 8

+

1 8

-

7 16

],
=

8 9

×[1-

7 16

],
=

8 9

×

9 16


=

1 2

脱式计算.(能简算的要简算)(1)1.25×8.37×0.8 (2)(9-2.35)×0.64 (3)0.25×32×...

(1)1.25×8.37×0.8 
=1.25×0.8×8.37,
=1×8.37,
=8.37;

(2)(9-2.35)×0.64
=6.65×0.64,
=4.256;

(3)0.25×32×12.5
=(0.25×4)×(8×1.25),
=1×10,
=10;

(4)0.15×1999+0.15  
=(1+1999)×0.15,
=2000×0.15,
=300;

(5)0.37×1.4-0.4×0.37
=(1.4-0.4)×0.37,
=1×0.37,
=0.37;

(6)8.7×9.9
=8.7×(10-0.1),
=8.7×10-8.7×0.1,
=87-0.87,
=86.13.

脱式计算(能简算的要简算)1.25×0.25×3.2×1.71.3-3.79+

(1)1.25×0.25×3.2×1.7,
=1.25×0.25×(0.8×4)×1.7,
=(1.25×0.8)×(0.25×4)×1.7,
=1×1×1.7,
=1.7;

(2)1.3-3.79+9.7-6.21,
=1.3+9.7-3.79-6.21,
=(1.3+9.7)-(3.79+6.21),
=11-10,
=1;

(3)6×

1 4

+13÷4-11×25%,
=6×

1 4

+13×

1 4

-11×

1 4


=(6+13-11)×

1 4


=8×

1 4


=2.

脱式计算(能简算的要简算)0.75×4×0.25×4 9.6+9.9×99 1

①0.75×4×0.25×4,
=0.75×(4×0.25)×4,
=0.75×1×4,
=3;

②9.6+9.9×99,
=9.6+980.1,
=989.7;

100道脱式简便计算 脱式计算,能简算的要简算.①2013×0.25+2013×0.75②1.25×32×0.25③12×( 5 6 + 1

③15.58÷8.2-0.72,
=1.9-0.72,
=1.18;

④4.536÷0.8÷14,
=5.67÷14,
=0.405;

⑤2.8×3.6+1.4×2.8,
=(3.6+1.4)×2.8,
=5×2.8,
=14;

⑥6.3×10.1,
=6.3×(10+0.1),
=6.3×10+6.3×0.1,
=63+0.63,
=63.63.

0.75十0.25x4.4脱式计算,能简算的要简算

0.75十0.25x4.4=0.75+0.25x4+0.25x0.4=0.75+1+0.1=1.85
或者0.75十0.25x4.4=0.25x3十0.25x4.4=0.25x(3+4.4)=0.25x7.4=1.85
不太记得脱式计算是什么意思了,其实利用好25x4=100也是蛮简单的

0.25×32×1.25能简算的要简算用递等式计算

0.25×32×1.25
=0.25×4×(8×1.25)
=1×10
=10
直接拆开计算

  
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