四则混合运算题(含答案)

四则混合运算题(含答案)
四则混合运算题(含答案)

四则混合运算题(含答案)

1. 混合运算。

(800?600÷20)÷7018×(537?488)

132÷[(9+13)×2]28×[20?(3+15)]

2. 先说一说运算顺序,再计算。

570+35÷787?35×2

3. 列竖式计算。

437+263519?383+465871?283?94

4. 计算下面各题。

59+141×21720?624÷24540÷45×180

5. 脱式计算

950?460?90720÷(65?57)105×(5×2)

6. 请想清楚运算顺序两计算。

(1)(700?296)×4(2)35×6+26×8(3)94?87=7;84÷7=________ 请将上面的两个算式改成一个算式:________.

这个综合算式计算过程如下:_______ ________ ________.7. 比一比,算一算。

(1)720÷(18?12)÷2(2)(720÷18?12)÷2

(3)720÷(18?12÷2)(4)720÷(18?12)÷2]

8. 计算下面各题(能简算的才简算).

6.3?2.1×(3?1.5) 5.8×99+5.82

3

+7

9

×3

14

+1

6

5916÷58×1113

50

÷[1

2

×(6

5

?1

3

)]

9. 脱式计算。

6760÷13+17×25 4.82?5.2÷0.8×0.635÷7

8

×1?2

7

10. 脱式计算。

400?906÷3(27+53)×32167?(67?18)

11. 脱式计算。

108×3×3120×4÷6480÷2÷5792÷(3×3)

12. 脱式计算。

(507?486)×480×9?2402000×3+2960

参考答案

一、解答题

1.①(800?600÷20)÷70

=(800?30)÷70

=770÷70

=110

②18×(537?488)

=18×49

=882

③132÷[(9+13)×2]

=132÷[22×2]

=132÷44

=3

④28×[20?(3+15)]

=28×[20?18]

=28×2

=56

2.①570+35÷7

=570+5

=575

②87?35×2

=87?70

=17

3.(1)437+263=700

(2)519?383+465

=136+465

=601

(3)871?283?94

=588?94

=494

4.(1)59+141×21

=59+2961

=3020

(2)720?624÷24

=720?26

=694

(3)540÷45×180

=12×180

=2160

5.(1)950?460?90

=490?90

=400

(2)720÷(65?57)

=720÷8=90

(3)105×(5×2)

=105×10

=1050

6.(700?296)×4

=404÷4

=101

35×6+26×8

=210+208

=418

12,84÷(94?87),84÷(94?87),=84÷7,=12

7.720÷(18?12)÷2

=720÷6÷2

=120÷2

=60

(720÷18?12)÷2

=(40?12)÷2

=28÷2

=14

720÷(18?12÷2)

=720÷(18?6)

=720÷12

=60

720÷[(18?12)÷2]

=720÷[6÷2]

=720÷3

=240

8.①6.3?2.1×(3?1.5)

=6.3?2.1×1.5

=6.3?3.15

=3.15

②5.8×99+5.8

=5.8×(99+1)

=5.8×100

=580

③2

3

+7

9

×3

14

+1

6

=

2

+

1

+

1

=

2

3

+(

1

6

+

1

6

)

=

2

3

+

1

3

=1

④5916÷58×11=102×11

=(100+2)×11

=100×11+2×11=1100+22

=1122

⑤13

50÷[1

2

×(6

5

?1

3

)]

=13

50

÷[

1

2

×

13

15

]

=13

50

÷

13

30

=3 5

二、计算题

9.(1)6760÷13+17×25=520+425

=945;

(2)4.82?5.2÷0.8×0.6=4.82?6.5×0.6

=4.82?3.9

=0.92;

(3)35÷7

8×1?2

7

=40×1?2

7

=40?2

7

=395

7

10.(1)400?906÷3=400?302

=98

(2)(27+53)×32

=80×32

=2560

(3)167?(67?18)=167?67+18

=100+18

=118

11.(1)108×3×3

=324×3

=972

(2)120×4÷6

=480÷6

=80(3)480÷2÷5

=480÷(2×5)

=480÷10

=48

(4)792÷(3×3)

=792÷9

=88

12.(1)(507?486)×4=21×4

=84

(2)80×9?240

=720?240

=480

(3)2000×3+2960=6000+2960

=8960

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