五年級分數簡便運算200道,急求200道五年級分數或簡便運算題

2021-08-04 09:31:36 字數 3588 閱讀 9834

1樓:新野旁觀者

4/7+1/14-1/2

=8/14+1/14-7/14

=2/14

=1/7

5/3-3/8-5/8

=5/3-(3/8+5/8)

=5/3-1

=2/3

3/5+3/11+7/5+11

=(3/5+7/5)+11+3/11

=2+11+2/11

=13又2/11

3/4-{5/6-1/3}

=3/4-(5/6-2/6)

=3/4-1/2

=3/4-2/4

=1/4

3/4+1/5=4/5 3/4-1/5=11/20 5/6+2/9=19/18 5/6-2/9=11/18 2/3+3/5=19/15

2/3-3/5=1/15 6/7+1/2=19/14 6/7-1/2=5/14 2/3+1/6=5/6 1/3+1/4=7/12

1/3-1/4=1/12 1/5+1/7=12/35 1/5-1/7=2/35 1/4+1/9=13/36 1/4-1/9=5/36

1/8+1/9=17/72 1/8-1/9=1/72 1/10+7/9=79/90 5/7-1/6=23/42 1-5/9=4/9

1/5+3/8=23/40 3/4+1/5=19/20 2/3-3/5=1/5 1-2/5=3/5 5/8-1/9=37/72

1/10-1/20=1/20 1/6+3/8=13/24 5/9-1/2=1/18 2/3+1/4=11/12 1/2+1/3=5/6

5/6+1/18=8/9 3/5-1/3=4/15 17/15-1/3=4/5 11/12-2/3=1/4 1/2-1/4=1/4

1/7-1/8=1/56 1/3-1/9=2/9 5/6-1/2=1/3 1-2/3=1/3 5/8-1/6=11/24

1/3+1/6=1/2 3/4-1/2=1/4 1/5+1/8=13/40 5/6+4/9=23/18 5/9-2/5=7/45

3/7+5/2=41/14 5/8+9/10=61/40 11/12-8/15=23/60 1/4+1/6=5/12 1/4-1/6=1/12

1-6/7=1/7 11/12-2/3=1/4 3/10+2/5=7/10 7/8-1/4=5/8 3/4+5/12=7/6

3/5-3/7=6/35 5/4-5/12=5/6 1/5-1/9=4/45 1/3-1/8=5/24 11/6-2/9=29/18

1/5+1/9=14/45 1-2/5=3/5 7/4+1/7=53/28 1-1/9=8/9 2/3-2/7=8/21

5/6+1/2=4/3 4/3-3/4=7/12 1-4/7=3/7 4/3+3/2=17/6 5/9+18/5=5/6

3/8+7/10+5/8=17/10 7/8-(1/8+3/4)=0 4/7+1/6-4/7=1/6

2-7/9-2/9=1 3/5+7/8+2/5=15/8 7/9-(1/9+1/3)=1/3

1/4+(2/5+3/4)=7/5 5/6-3/10+1/6-7/10=0 3/4+1/6-2/3=1/4

7/8-1/4+4/9=77/72 1-1/3+2/7=20/21 1/2+4/5-3/10=1

5/6-(2/3-1/9)=5/18 9/10-(3/4+1/8)=1/40 1/2+2/3-3/4=5/12

7/8-1/6+1/4=23/24 1-(3/4-2/9)=17/36 9/10-1/5-1/2=1/5

1/4+3/7+1/2=33/28 7/8-(2/3+1/6)=1/24 1-(1/3+3/5)=1/15

1/2+1/4+1/3=13/12 7/8+1/4+1/2=5/8 5/7-(4/7+1/9)=2/63

1-1/4-1/2=1/4 3/4-1/6-1/3=1/4 3/10+1/4+2/5=19/20

2/3+1/6+1/12=11/12 1-1/4-2/5=7/20 1/2+1/9+1/12=25/36

2樓:林林林

5/4-(2/1+4/1)

=20/16-(20/10+20/5)

=20/16-20/15

=20/1

急求200道五年級分數或簡便運算題

3樓:夏傷

一、口算下面各題。(23分) 10-2.65= 0.

9×0.08= 528-349= 6+14.4= 24÷0.

04= 12.34-2.3= 0÷3.

8= 0.77+0.33= 7÷1.

4= 67.5+0.25=7.

2÷8×4= 5-1.4-1.6= 400÷125÷8= 1.

9×4×0.5= 80×0.125= 3× = 6 6= 2 -( + )= 10 2= 3.

2×7÷3.2×7= ( - )×12= 187.7×11-187.

7= 1- 62.5%= 二、寫出下列每題在簡便運算時所運用的定律或性質(12分) 4 +3.2+5 +6.

8 25×(8×0.4)×1.25 7 -(2 - ) ( ) ( ) ( ) (+ + )×72 93.

5÷3 16÷2.5 ( ) ( ) ( ) 三、用簡便方法計算。(65分) 1125-997 998+1246+9989 (8700+870+87)÷87 125×8.

8 1.3+4.25+3.

7+3.75 17.15-(3.

5-2.85) 3.4×99+3.

4 4.8×1.01 0.

4×(2.5÷73) (1.6+1.

6+1.6+1.6)×25 (+-)÷ 12.

3-2.45-5.7-4.

55 2 + 0.125×0.25×64 64.

2×87+0.642×1300 78×36+7.8×741-7 17+ 8 0.

125× +0.5 2.42 +4.

58 -43 25÷100 4.25-3 -(2 -1 ) (1)1.25*17.

6+36.1/0.8+2.

36*12.5 (2)7.5*2.

3+1.9*2.5 (3)2004/2003*2005 (4)276*543-267/276+543*275 (5)17/51+ (68/1+51/2)*17 (6)(3.

25-0.8*8/5)/(6又4/1-3.5) 1)五十二又二十五分之十一×79.

45+159×47.56+七十九又二十分之十一×52.44 =52.

44×79.45+159×47.56+79.

55×52.44 =52.44×(79.

45+79.55)+159×47.56 =52.

44×159+159×47.56 =159×(52.44+47.

56) =159×100 =15900 3)2002+2001-2000-1999+1998+1997-1996-1995+……+2+1 4)(1×2分之一)+(2×3分之一)+(3×4分之一)+……+(10×11分之一) 5)三分之一+十五分之一+三十五分之一+六十三分之一+九十九分之一 6)一又二分之一-六分之五+十二分之七-二十分之九+三十分之十一-四十二分之十三+五十六分之十五 (提示,1又1/2=1+1/2,+1/2+1/3=5/6……)

麻煩採納,謝謝!

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