2/1×8=16
5/8×4=5/2
6/5×5=6
8/7×7=8
6/5×10=12
1/2×6/5=3/5
1/7×7/5=1/5
1/7×1/8=1/56
8/9×2/7=18/63
1/22×22/4=1/4
5/4÷2/7=35/8
2/3÷8/16=3/4
8/6÷6/7=14/9
1/22÷4/22=1/4
5/2÷2/5=25/4
4/9×4/3=16/27
1/3×1/3=1/9
1/2×1/3=1/6
4/5×3/4=3/5
8/7×1/2=4/7
3/5×5/8=3/8
6/7×3/2=9/7
5/6×8/3=20/9
4/11×3/4=3/11
4/9×3/8=1/6
1. 3/7 × 49/9 - 4/3
2. 8/9 × 15/36 + 1/27
3. 12× 5/6 – 2/9 ×3
4. 8× 5/4 + 1/4
5. 6÷ 3/8 – 3/8 ÷6
6. 4/7 × 5/9 + 3/7 × 5/9
7. 5/2 -( 3/2 + 4/5 )
8. 7/8 + ( 1/8 + 1/9 )
9. 9 × 5/6 + 5/6
10. 3/4 × 8/9 - 1/3
11. 7 × 5/49 + 3/14
12. 6 ×( 1/2 + 2/3 )
13. 8 × 4/5 + 8 × 11/5
14. 31 × 5/6 – 5/6
15. 9/7 - ( 2/7 – 10/21 )
16. 5/9 × 18 – 14 × 2/7
17. 4/5 × 25/16 + 2/3 × 3/4
18. 14 × 8/7 – 5/6 × 12/15
19. 17/32 – 3/4 × 9/24
20. 3 × 2/9 + 1/3
1. 5/7 × 3/25 + 3/7
2. 3/14 ×× 2/3 + 1/6
3. 1/5 × 2/3 + 5/6
4. 9/22 + 1/11 ÷ 1/2
5. 5/3 × 11/5 + 4/3
6. 45 × 2/3 + 1/3 × 15
7. 7/19 + 12/19 × 5/6
8. 1/4 + 3/4 ÷ 2/3
9. 8/7 × 21/16 + 1/2
10. 101 × 1/5 – 1/5 × 21
11. 3/7 × 49/9 - 4/3
12. 8/9 × 15/36 + 1/27
13. 12× 5/6 – 2/9 ×3
14. 8× 5/4 + 1/4
15. 6÷ 3/8 – 3/8 ÷6
16. 4/7 × 5/9 + 3/7 × 5/9
17. 5/2 -( 3/2 + 4/5 )
18. 7/8 + ( 1/8 + 1/9 )
19. 9 × 5/6 + 5/6
20. 3/4 × 8/9 - 1/3
1. 7 × 5/49 + 3/14
2. 6 ×( 1/2 + 2/3 )
3. 8 × 4/5 + 8 × 11/5
4. 31 × 5/6 – 5/6
5. 9/7 - ( 2/7 – 10/21 )
6. 5/9 × 18 – 14 × 2/7
7. 4/5 × 25/16 + 2/3 × 3/4
8. 14 × 8/7 – 5/6 × 12/15
9. 17/32 – 3/4 × 9/24
10. 3 × 2/9 + 1/3
11. 5/7 × 3/25 + 3/7
12. 3/14 ×× 2/3 + 1/6
13. 1/5 × 2/3 + 5/6
14. 9/22 + 1/11 ÷ 1/2
15. 5/3 × 11/5 + 4/3
16. 45 × 2/3 + 1/3 × 15
17. 7/19 + 12/19 × 5/6
18. 1/4 + 3/4 ÷ 2/3
19. 8/7 × 21/16 + 1/2
20. 101 × 1/5 – 1/5 × 21
1. 7/19 + 12/19 × 5/6
2. 1/4 + 3/4 ÷ 2/3
3. 8/7 × 21/16 + 1/2
4. 101 × 1/5 – 1/5 × 21
5.50+160/40
6.(58+370)÷(64-45)
7.120-144/18+35
8.47+45×2-4160÷52
9.3/7 × 49/9 - 4/3
10.8/9 × 15/36 + 1/27
11.12× 5/6 – 2/9 ×3
12.8× 5/4 + 1/4 6÷ 3/8 – 3/8 ÷6
13.4/7 × 5/9 + 3/7 × 5/9
14.5/2 -( 3/2 + 4/5 )
15.7/8 + ( 1/8 + 1/9 )
16. 9 × 5/6 + 5/6
17.3/4 × 8/9 - 1/3
18.7 × 5/49 + 3/14
19. 6 ×( 1/2 + 2/3)
20.1/5 + 3/4 ÷ 2/3
1、(1)黃花(hua)有(you)50朵,紅花(hua)是黃花(hua)的,紅花(hua)有(you)多(duo)少朵?
(2)黃花(hua)(hua)有50朵,紅花(hua)(hua)比黃花(hua)(hua)多,紅花(hua)(hua)比黃花(hua)(hua)多多少朵?
(3)黃花有50朵,紅(hong)花比黃花多(duo),紅(hong)花有多(duo)少朵?
2、(1)食堂(tang)有噸煤,用去一部(bu)分后還剩。還剩多少噸?
(2)食(shi)堂有(you)噸(dun)煤,用(yong)去噸(dun)。還剩多少噸(dun)?
(3)食堂有噸煤,用去。還剩多少噸?
(4)食堂有噸煤,用去。還剩幾(ji)分之幾(ji)?
3、一輛卡車(che)1千(qian)(qian)米耗(hao)油(you)升,照這樣計算,行千(qian)(qian)米耗(hao)油(you)多少升?50千(qian)(qian)米呢?
4、一件毛衣原來銷售56元,現(xian)降低銷售,降價(jia)多(duo)少(shao)元?現(xian)價(jia)是多(duo)少(shao)元?
5、小軍(jun)家有(you)5口人,早上每人喝一瓶(ping)升的牛奶,一共喝了多少升?每升牛奶大約含鈣克,一瓶(ping)牛奶含鈣多少克?
6、六(liu)年(nian)級一班有(you)48名同學,二班的人(ren)數是(shi)一班的,三班的人(ren)數是(shi)二班的,六(liu)年(nian)級三班有(you)多少人(ren)?
1、一輛汽車每分鐘(zhong)走7/8千米,48分鐘(zhong)走了多少(shao)千米?1小時呢?
2、一個正方體燈(deng)籠框(kuang)架,棱長9/20米(mi),做這(zhe)樣一個燈(deng)籠需要鐵絲多少米(mi)?
3、一袋(dai)瓜子重50千克,每3/4千克瓜子裝(zhuang)一包,裝(zhuang)了20包,還(huan)剩下多少千克?
4、甲、乙兩地(di)(di)(di)相(xiang)距240千(qian)(qian)米,一輛汽車從甲地(di)(di)(di)開往(wang)乙地(di)(di)(di),2小時行(xing)(xing)駛(shi)(shi)了全(quan)程的3/4,汽車平均(jun)每小時行(xing)(xing)駛(shi)(shi)多少千(qian)(qian)米?
5、人的頭(tou)部(bu)約占身高的1/8,王華身高168厘米,他的頭(tou)部(bu)大約是多少厘米?
6、六(1)班有(you)48人(ren),其中參加課(ke)(ke)外(wai)(wai)閱(yue)讀興趣小組的占(zhan)全(quan)班人(ren)數的1/4,參加課(ke)(ke)外(wai)(wai)閱(yue)讀興趣小組的有(you)多少人(ren)?
7、一(yi)個足球(qiu)售價(jia)96元(yuan),一(yi)個籃球(qiu)的價(jia)錢是足球(qiu)的5/8,一(yi)個排(pai)球(qiu)的售價(jia)是籃球(qiu)售價(jia)的3/4。排(pai)球(qiu)的價(jia)錢是多(duo)少元(yuan)?
8、一本書60頁,已經看(kan)了2/3,看(kan)了多少(shao)頁?還剩下多少(shao)頁?
9、某小區進行綠(lv)化,其中空地有1200平(ping)方(fang)米,種(zhong)(zhong)花的(de)面(mian)積(ji)是(shi)空地面(mian)積(ji)的(de)7/8,種(zhong)(zhong)樹面(mian)積(ji)是(shi)種(zhong)(zhong)花面(mian)積(ji)的(de)4/5。這個小區種(zhong)(zhong)樹多少平(ping)方(fang)米?
10、甲、乙兩地相距(ju)126千(qian)米(mi),一輛汽車從甲地開往(wang)乙地,行駛了7/9還多5千(qian)米(mi),行駛了多少千(qian)米(mi)?
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