給我180道簡便運算

2022-12-23 17:05:10 字數 6345 閱讀 6580

1樓:樂觀的藍色小鳥

1.) 0.25+0.75/25*4

2. ) 4.6*3.7+4.6+4.6*5.33. )1.25*6.4*25

4. )35.2/【(20.

5-9.5)*0.4】-0.

65.) 5.08*3.

5+2.52/2.46)(9.

9+9.9*3)*2.5

7)4.66-7.7/2.

5)*(1-0.45)7)46*0.187-1.

87+6.4*1.878)[0.

02+(7.28-0.48)*1.

5]/1029)0.8*(3.2-2.

99/2.3)

10)8.65-3.7+1.35-6.3

11)7.05*23.7+7.05*76.312)3.5-3.5*0.95

13)8*(12.5+0.25)*4

14)9.9*1.01

15)402*10.1

16)[(4.3-3.8)*0.8-0.1]17)27.8/2.5/4

18)1200/12.5

19)2.5*6.4*12.5

20)7.25+7.25*97+7.25*221)125*63+125

22)9.03-0.18+0.82

23)155*(164/4-11)

24)243.56-73.88-26.1225)82.48-15.75+18.75

26)4.69-1.75-6.25+6.3127)125*99+25

28)8.32+7.6+0.68+2.4

29)(124-85)*54/26

30)199*99+99*2

31)8160/[145-(78+27)]32)2.8*0.7*0.5

33)3.6*0.9*1.4

34)56*32*0.16

35)7.4*0.13*0.35

36)0.364*0.25*18

37)4.07*3600*8.5

38)50.9*(1.13+5.77)

39)2.5*(10.8-9.76)

40)93.2*(7-6.56)

41)870*(1.5+2.01)

42)10.76*1.01-7.5

43)10.4-0.104*100

44)2.8*0.36+8.736

45)6.2*1.01

46)3.2*0.25

47)(1.25+2.5)*8

48)3.75*98+3.75*2

49)5.7*99+5.7

50)025*32*2.5

51)10.8*4.2+4.

2*1.2-4.2*252)6.

58*0.12+33.42*0.

1253)8.6*2.7+3.

5*1.6

54)7.8*1.25+8

55) 4000÷25

56) 7.41+4.6+2.59+5.457)18×(210-93)÷26

58) 9.14-4.57-0.57

59) 65×35+65×65

60) 3960÷[145-(27+88)]61) 64000÷250

62) 7.84-2.93-0.93

63) 6.51+7.8+3.49+2.264) 52×(207+93)÷13

65) 47×53+47×47

66) 14443÷[162-(97-78)]158+262+138 375+219+381+225 5001-247-1021-232

(181+2564)+2719

378+44+114+242+222

276+228+353+219

(375+1034)+(966+125)

(2130+783+270)+1017

99+999+9999+99999

7755-(2187+755)

2214+638+286

3065-738-1065

2357-183-317-357

2365-1086-214

3999+498

1883-398

75×24

138×25×4

(13×125)×(3×8)

(12+24+80)×50

704×25

25×32×125

32×(25+125)

88×125

102×76

58×98

178×101-178

84×36+64×84

75×99+2×75

83×102-83×2

98×199

123×18-123×3+85×123

50×(34×4)×3

25×(24+16)

178×99+178

79×42+79+79×57

7300÷25÷4

8100÷4÷75

16800÷120

30100÷2100

32000÷400

49700÷700

1248÷24

3150÷15

4800÷25

21500÷125

2356-(1356-721)

1235-(1780-1665)

75×27+19×2 5

應該差不多了吧

2樓:奔放神

1+1+2+3+4……+180

希望對你能有所幫助。

脫式計算簡便180道不簡便180道帶答案。

3樓:新野旁觀者

(1)2.5*32*0.125

=(2.5*4)*(8*0.125)

=10*1

=10(2)3.5-7+6.5

=3.5+6.5-7

=3(3)1.2×2.5+0.8×2.5

=2.5(1.2+0.8)

=25(4)8.9×1.25-0.9×1.25

=1.25(8.9-0.9)

=10(5)12.5×7.4×0.8

=12.5×0.8×7.4

=74(6)6.5×9.5+6.5×0.5

=6.5×(9.5+0.5)

=6.5×10

=65(7)0.35×1.6+0.35×3.4

=0.35*(1.6+3.4)

=0.35*5

=1.75

(8)6.72-3.28-1.72

=6.75-(3.28+1.72)

=6.75-5

=1.75

(9)0.45+6.37+4.55

=0.45+4.55+6.37

=5+6.37

=11.37

(10)28×12.5-12.5×20

=(28-20)*12.5

=8*12.5

=100

(11)23.65-(3.07+3.65)

=23.65-3.65-3.07

=20-3.07

=16.93

(12)(4+0.4×0.25)8×7×1.25

=(4+1)*7*10

=5*7*10

=350

(13)1.65×99+1.65

=1.65*(99+1)

=1.65*100

=165

(14)27.85-(7.85+3.4)

=27.85-7.85+3.4

=20+3.4

=23.4

(15)48×1.25+50×1.25×0.2×8

7.8×9.9+0.78

=7.8*(9.9+0.1)

=7.8*10

=78(16)4.8×46+4.8×54

=(46+54)*4.8

=100*4.8

=480

(17)673-327-173

=673-(327+173)

=673-500

=173

(18)4.44*2.5

=1.11*(4*2.5)

=1.11*10

=11.1

(19)3.5÷1.4

=(3.5÷0.7)÷(1.4÷0.7)

=5÷2

=2.5

(20)1+2+3+4+5......+99+100

=(1+99)+(2+98)+(3+97)+......+(49+51)+50

=(100÷2-1)*100+50

=4900+50

=4950⑴運用加法交換律進行簡便計算。

0.88+5.6+0.12 1.78+3.5+0.22 5.6+2.08+14.4

=0.88+0.12+5.6 =1.78+0.22+3.5 =5.6+14.4+2.08

=1+5.6 =2+3.5 =20+2.08

=6.6 =5.5 =22.08

⑵運用加法結合律進行簡便計算

2.3+(0.56+4.7) 28.6+0.54+0.46+1.4 5.82+4.56+5.44

=(2.3+4.7)+0.56 =(28.6+1.4)+(0.54+0.46) =5.82+(4.56+5.44)

=7+0.56 =30+1 =5.82+10

=7.56 =31 =15.82

⑶、運用乘法交換律進行簡便計算。

25×0.37×0.4 7.5×0.39×4 6.5×1.1×4 1.25×3.9×0.8

=25×0.4×0.37 =7.5×4×0.39 =6.5×4×1.1 =1.25×0.8×3.9

=10×0.37 =30×0.39 =26×1.1 =1×3.9

=3.7 =11.7 =28.6 =3.9

⑷、運用乘法結合律進行簡便計算。

1.9×7.5×8 6.2×0.8×2.5 4.3×1.5×6 4.1×3.5×2

=1.9×(7.5×8) =6.2×(0.8×2.5) =4.3×(1.5×6) =4.1×(3.5×2)

=1.9×60 =6.2×2 =4.3×9 =4.1×7

=114 =12.4 =38.7 =28.7

⑸、運用乘法分配律的加法進行簡算。

13.6×4.6+4.6×6.4 0.72×23+77×0.72 2.6×32+32×2.4

=(13.6+6.4)×4.6 =(23+77)×0.72 =(2.6+2.4) ×32

=20×6.4 =100×0.72 =5×32

=128 =72 =160

⑹、運用乘法分配律的減法進行簡算。

12×5.9-5.9×2 4.6×2.5-2.5×0.6 101×9.7-9.7

=(12-2) ×5.9 =(4.6-0.6)×2.5 =(101-1)×9.7

=(12-2) ×5.9 =(4.6-0.6)×2.5 =(101-1)×9.7

=10×5.9 =4×2.5 =100×9.7

=59 =10 =970

⑺、運用減法的運算規律進行簡便計算。

1.8-0.45-0.55 54.4-4.6-5.4 35.6-0.13-0.47

=1.8-(0.45+0.55) =54.4-(4.6+5.4) =35.6-(0.13+0.47)

=1.8-1 =54.4-10 =35.6-0.6

=0.8 =44.4 =35

⑻、運用除法的運算規律進行簡便計算。

4.5÷4÷7.5 14.8÷1.25÷8 18.5÷4÷1.25 5.4÷4÷0.45

=4.5÷(4×7.5) =14.8÷(1.25×8) =18.5÷(4×1.25) =5.4÷(4×0.45)

=4.5÷30 =14.8÷10 =18.5÷5 =5.4÷0.18

=0.15 =1.48 =3.7 =30

⑼綜合運用各種運算定律進行簡算。

2.54+2.46+0.44+0.54 10.7×0.4-6.7×0.4 0.5×3.2×1.25

=(2.54+2.46)+(0.44+0.54) =(10.7-6.7)×0.4 =(0.5×4)×(0.8×1.25)

=5+1 =4×0.4 =2×1

=6 =1.6 =2

89.7+5.8-9.7+4.2 99×0.38+0.38 360÷(18×0.4)

=(89.7-9.7)+(5.8+4.2) =(99+1) ×0.38 =360÷18÷0.4

=80+10 =100×0.38 =20÷0. 4

=90 =38 =50

4.8×12.5 2.5×1.6×12.5 3.2×102

=0.6×(8×12.5) =(2.5×0.2)×(8×12.5) =3.2×(100+2)

=0.6×100 =0.5×100 =3.2×100+3.2×2

=60 =50 =320+6.4

=326.4

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