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五年级脱式计算简便运算的题 脱式计算下面各题,能简算的要简算 9750÷25+75; (2.32+1.8)×6.5; 101×7.8; 5 8

火烧 2023-02-06 03:32:23 1129
脱式计算下面各题,能简算的要简算 9750÷25+75; (2.32+1.8)×6.5; 101×7.8; 5 8 脱式计算下面各题,能简算的要简算 9750÷25+75; (2.32+1.8)×6.

脱式计算下面各题,能简算的要简算 9750÷25+75; (2.32+1.8)×6.5; 101×7.8; 5 8  

脱式计算下面各题,能简算的要简算 9750÷25+75; (2.32+1.8)×6.5; 101×7.8; 5 8

(1)9750÷25+75
=390+75,
=465;

(2)(2.32+1.8)×6.5
=4.12×6.5,
=26.78;

(3)101×7.8
=100×7.8+7.8,
=780+7.8,
=787.8;

(4)

5 8

×

8 15

+

3 4

÷

1 4

=

1 3

+3,
= 3

1 3

(5)

1 3

÷[

3 4

-(

1 18

+

5 12

)]
=

1 3

÷[

3 4

-

17 36

],
=

1 3

÷

10 36


=

6 5

计算下面各题能简算的要简算459÷25÷4脱式计算

459÷25÷4
=459÷(25×4)
=459÷100
=4.59

脱式计算下面各题,能简算的要简算:75×5÷75×5 (80+4)×125  ...

①75×5÷75×5
=375÷75×5
=5×5
=25

②(80+4)×125      
=80×125+4×125
=10000+500
=10500

③96+480÷96
=96+5
=101

(1)9750÷25+75 (2)(2.32+1.8)×6.5 (3)101×7.8 (4) 5 8 × 8 15

(1)9750÷25+75,
=390+75,
=465;

(2)(2.32+1.8)×6.5,
=4.12×6.5,
=26.78;

(3)101×7.8,
=(100+1)×7.8,
=100×7.8+1×7.8,
=780+7.8,
=787.8;

(4)

5 8

×

8 15

+

3 4

÷

1 4


=

1 3

+3,
=3

1 3

(5)

1 3

÷ [

3 4

-(

1 18

+

5 12

)],
=

1 3

÷ [

3 4

-

17 36

],
=

1 3

÷

5 18


=

6 5

脱式计算下面各题,能简算的要简算:75×5÷75×5(80+4)×12596+480÷96

①75×5÷75×5
=375÷75×5
=5×5
=25

②(80+4)×125
=80×125+4×125
=10000+500
=10500

③96+480÷96
=96+5
=101

计算下面各题,能简算的要简算.(1)25×1.25×32(2)7.8×3.4+7 4 5 +7.8×5 3 5

(1)25×1.25×32,
=25×1.25×8×4,
=(25×4)×(1.25×8),
=100×10,
=1000;

(2)7.8×3.4+7

4 5

+7.8×5

3 5


=7.8×3.4+7.8×1+7.8×5.6,
=7.8×(3.4+1+5.6),
=7.8×10,
=78;

(3)(

2 7

+

1 5

)×7×5,
=(

2 7

+

1 5

)×(7×5),
=

2 7

×(7×5)+

1 5

×(7×5),
=[(

2 7

×7)×5]+[(

1 5

×5)×7],
=[2×5]+[1×7],
=10+7,
=17;

(4)(

4 5

+

1 4

)÷

7 3

+

7 10


=

21 20

÷

7 3

+

7 10


=

21 20

×

3 7

+

7 10


=

9 20

+

7 10


=

23 20

(5)5400-2940÷28×27,
=5400-105×27,
=5400-2835,
=2565;

(6)

7 15

÷[(

5 7

-

3 14

)÷

3 4

],
=

7 15

÷[

1 2

÷

3 4

],
=

7 15

÷

2 3


=

7 10

计算下面各题(能简算的要简算)25×8×4×125 &nbs...

(1)25×8×4×125
=25×4×(8×125)
=100×1000
=100000;

(2)201×41
=(200+1)×41
=200×41+1×41
=8200+41
=8241;

(3)38×99+38
=38×(99+1)
=38×100
=3800;

(4)425+21×(12+28)
=425+21×40
=425+840
=1265;

(5)15×[120-(42+36)]
=15×[120-78]
=15×42
=630.

计算下面各题,能简算的要简算:(1)2.95*101-2.95

:(1)2.95*101-2.95=2.95*100=295
(2)4.6*0.35+4.6*0.65=4.6*1=4.6
(3)6.3*99+6.3=6.3*100=630
(4)16.12*99+16.12=16.12*100=1612
(5)5.2*0.9+0.95=6.2*0.9
(6)8.4*0.26+0.74
(7)56.5*99+56.5=56.5*100=5650
(8)5.5*17.3+2.7*5.5=20*5.5=110
(9)31.7-0.5*0.7-1.65=31.7-0.35-1.65=31.7-2=29.7
(10)0.8*(3.2-2.99÷2.3)
(11)7.09-10.8-0.8*7.09

计算下面各题,能简算的要简算 6 5 × 3 8 + 5 8 ÷ 5 6

(1)

6 5 ×

3 8

+

5 8

÷

5 6


=

6 5

×

3 8

+

5 8

×

6 5


=

五年级脱式计算简便运算的题 脱式计算下面各题,能简算的要简算 9750÷25+75; (2.32+1.8)×6.5; 101×7.8; 5 8
6 5

×(

3 8

+

5 8

),
=

6 5

×1,
=

6 5

(2)

7 16

×[

5 16

+(

9 16

-

1 4

÷

1 2

)],
=

7 16

×[

5 16

+(

9 16

-

1 2

)],
=

7 16

×[

5 16

+

9 16

-

1 2

],
=

7 16

×[

7 8

-

1 2

],
=

7 16

×

3 8


=

21 128

(3)

17 8

-0.35-1.65,
=

17 8

-(0.35+1.65),
=

17 8

-2,
=

1 8

(4)(11-5)÷

5 6

×

6 13


=6÷

5 6

×

6 13


=

36 5

×

6 13


=

216 65

计算下面各题,能简算的要简算.7.8+4.56+2.2 1.25×17×...

(1)7.8+4.56+2.2
=(7.8+2.2)+4.56
=10+4.56
=14.56;

(2)1.25×17×8
=1.25×8×17
=10×17
=170;

(3)3.25÷0.25÷0.4 
=3.25÷(0.25×0.4)
=3.25÷0.1
=32.5;

(4)4.2×0.7+5.8×0.7
=(4.2+5.8)×0.7
=10×0.7
=7.

  
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