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(huang)花有50朵(duo),紅花是黃(huang)花的,紅花有多少(shao)朵(duo)?
(2)黃(huang)花(hua)(hua)有50朵,紅(hong)花(hua)(hua)比黃(huang)花(hua)(hua)多(duo),紅(hong)花(hua)(hua)比黃(huang)花(hua)(hua)多(duo)多(duo)少朵?
(3)黃(huang)花有50朵,紅(hong)花比黃(huang)花多,紅(hong)花有多少朵?
2、(1)食堂有噸(dun)煤,用去一部(bu)分后還剩。還剩多少噸(dun)?
(2)食堂有噸煤,用(yong)去噸。還剩(sheng)多少噸?
(3)食堂有(you)噸煤,用去。還剩多(duo)少(shao)噸?
(4)食堂有(you)噸(dun)煤,用去。還剩幾(ji)分(fen)之幾(ji)?
3、一(yi)輛卡車1千米(mi)耗(hao)油升(sheng),照(zhao)這(zhe)樣計算,行千米(mi)耗(hao)油多少升(sheng)?50千米(mi)呢?
4、一件毛(mao)衣原來(lai)銷售56元(yuan),現降(jiang)(jiang)低銷售,降(jiang)(jiang)價(jia)多少元(yuan)?現價(jia)是多少元(yuan)?
5、小(xiao)軍家有5口人,早上(shang)每人喝一(yi)(yi)瓶升(sheng)的牛奶(nai)(nai),一(yi)(yi)共喝了(le)多少(shao)升(sheng)?每升(sheng)牛奶(nai)(nai)大約(yue)含鈣克(ke),一(yi)(yi)瓶牛奶(nai)(nai)含鈣多少(shao)克(ke)?
6、六年(nian)級一(yi)班(ban)有(you)48名同學(xue),二(er)班(ban)的人數是(shi)一(yi)班(ban)的,三班(ban)的人數是(shi)二(er)班(ban)的,六年(nian)級三班(ban)有(you)多少人?
1、一(yi)輛汽(qi)車(che)每(mei)分鐘(zhong)走(zou)7/8千米,48分鐘(zhong)走(zou)了多(duo)少(shao)千米?1小時呢?
2、一(yi)個正方體(ti)燈籠框架,棱長9/20米,做這(zhe)樣(yang)一(yi)個燈籠需要(yao)鐵絲多少米?
3、一(yi)袋瓜子重50千(qian)克,每(mei)3/4千(qian)克瓜子裝(zhuang)一(yi)包(bao),裝(zhuang)了20包(bao),還剩下多少千(qian)克?
4、甲、乙(yi)(yi)兩(liang)地(di)(di)相(xiang)距240千米(mi),一(yi)輛汽(qi)車從甲地(di)(di)開往乙(yi)(yi)地(di)(di),2小時(shi)行駛了全程的3/4,汽(qi)車平均(jun)每小時(shi)行駛多少(shao)千米(mi)?
5、人(ren)的(de)頭(tou)部(bu)約(yue)(yue)占身高的(de)1/8,王(wang)華身高168厘米(mi)(mi),他的(de)頭(tou)部(bu)大約(yue)(yue)是(shi)多少厘米(mi)(mi)?
6、六(1)班有48人(ren),其(qi)中參(can)加課(ke)外(wai)閱(yue)讀(du)興趣(qu)小組的(de)占全班人(ren)數的(de)1/4,參(can)加課(ke)外(wai)閱(yue)讀(du)興趣(qu)小組的(de)有多少(shao)人(ren)?
7、一(yi)個(ge)足球(qiu)(qiu)售(shou)價(jia)96元(yuan),一(yi)個(ge)籃球(qiu)(qiu)的價(jia)錢是足球(qiu)(qiu)的5/8,一(yi)個(ge)排(pai)(pai)球(qiu)(qiu)的售(shou)價(jia)是籃球(qiu)(qiu)售(shou)價(jia)的3/4。排(pai)(pai)球(qiu)(qiu)的價(jia)錢是多少元(yuan)?
8、一本(ben)書60頁,已經看了(le)2/3,看了(le)多少頁?還剩下(xia)多少頁?
9、某(mou)小區進行綠化,其中空(kong)地有1200平方米,種(zhong)花的面(mian)(mian)積是空(kong)地面(mian)(mian)積的7/8,種(zhong)樹面(mian)(mian)積是種(zhong)花面(mian)(mian)積的4/5。這個小區種(zhong)樹多少平方米?
10、甲(jia)、乙(yi)兩地(di)相距126千(qian)(qian)米(mi),一輛汽車從甲(jia)地(di)開往乙(yi)地(di),行(xing)駛了7/9還多5千(qian)(qian)米(mi),行(xing)駛了多少(shao)千(qian)(qian)米(mi)?
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