五年級上冊混合運算20道(加過程及答案

2021-03-11 08:33:45 字數 6258 閱讀 5542

1樓:新野旁觀者

3.17+4.7+5.83+2.74+6.3+0.26

=(3.17+5.83)

62616964757a686964616fe59b9ee7ad9431333433643038+(2.74+0.26)+(6.3+4.7)+5.29

=9+3+11+5.29

=28.29

6.11+9.22+8.33+7.44+5.55+4.56+3.67+2.78+1.89

(1)9.26-4.38-2.62=9.26-(4.38+2.62)=9.26-7=2.26

(2)9.26-(4.38+2.26)= 9.26-2.26-4.38=7-4.38=2.62

(3)9.26-(4.38-2.74)= (9.26+2.74)-4.38=12-4.38=7.62

(1)4.75-9.64+8.25-1.36

(2)14.529+(2.471-3)

(3)38.68-(4.7-2.32)

(4)7.93+(2.8-1.93)

例3 計算下面各題

(1)8×25×1.25×0.04=(8×1.25)×(0.04×25)=10×1=10

(2)36÷12.5=(3600×8)÷(12.5×8)=28800÷100=288

(3)0.25×1.25×32=0.25×1.25×(4×8)= (4×0.25)×(1.25×8)=10

(1)64×12.5×0.25×0.05

(2)27÷0.25

(3)12.5×0.76×0.4×8×2.5

0.1+0.2+0.3+……+0.9+0.10+0.11+0.12+……+0.98+0.99

=(0.1+0.9)×9÷2+(0.10+0.99)×90÷2

=4.5+49.05

=53.55

計算 1.1+3.3+5.5+7.7+9.9+11.11+13.13+15.15+17.17+19.19

例5 計算下面各題

(1) 7.24×0.1+5×7.24+4.9×7.24=7.24×(0.1+5+4.9)=7.24×10=72.4

(2)1.25×67.875+125×6.7875+1.25×53.375

=1.25×67.875+1.25×678.75+1.25×53.375

=1.25×(67.875+678.75+53.375)

=1.25×800

=1000

(3)7.5×45+17×2.5

=7.5×(17+28)+17×2.5

=7.5×17+7.5×28+17×2.5

=17×(7.5+2.5)+7.5×4×7

=170+210

=380

用簡便方法計算

(1)383.75×7.9+79×61.625

(2)9.99×0.7+1.11×2.7

(3)6.25×0.16+264×0.0625+5.2×6.25+0.625×20

【課外拓展】用簡便方法計算下面各題

(1)34.5 8.23-34.5+2.77 34.5

(2)6.25 0.16+264 0.0625+5.2 6.25+0.625 20

(3)0.035 935+0.035+3 0.035+0.07 61 0.5

(4)19.98 37-199.8 1.9+1998 0.82

(5)1-0.1-0.01-0.001-0.0001-……-0.000000001

【走進賽題】

1、12.5×69+53×3.1+72×3.1

2、1.1+3.3+5.5+7.7+9.9+11.11+13.13+15.15+17.17+19.19

3、0.79×0.46+7.9×0.24+11.4×0.079

4、7.5×23+31×2.5

2樓:南笙雨辰

那個,你沒有題目麼?如果沒有的話你能不能把要求說具體一點,畢竟我都忘了五年級有什麼題了

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

3樓:匿名使用者

50道五年級脫式計算題帶過

4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

5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

6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。

7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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