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(hua)有(you)50朵(duo),紅花(hua)是黃(huang)花(hua)的,紅花(hua)有(you)多少朵(duo)?
(2)黃(huang)(huang)花(hua)(hua)有50朵,紅花(hua)(hua)比(bi)黃(huang)(huang)花(hua)(hua)多,紅花(hua)(hua)比(bi)黃(huang)(huang)花(hua)(hua)多多少朵?
(3)黃(huang)(huang)花有(you)50朵,紅花比(bi)黃(huang)(huang)花多(duo),紅花有(you)多(duo)少朵?
2、(1)食(shi)堂有噸煤,用去一部分后(hou)還(huan)剩(sheng)。還(huan)剩(sheng)多少噸?
(2)食堂(tang)有噸煤(mei),用(yong)去噸。還剩多少噸?
(3)食堂有噸煤,用去。還剩多少噸?
(4)食堂有噸(dun)煤(mei),用去(qu)。還(huan)剩(sheng)幾(ji)分(fen)之幾(ji)?
3、一輛卡(ka)車1千米耗(hao)油升,照這(zhe)樣(yang)計算,行千米耗(hao)油多少(shao)升?50千米呢?
4、一件毛衣原來銷售(shou)56元(yuan)(yuan),現降(jiang)低銷售(shou),降(jiang)價多少元(yuan)(yuan)?現價是多少元(yuan)(yuan)?
5、小軍家有5口人(ren),早(zao)上每人(ren)喝一瓶升(sheng)的牛(niu)奶,一共喝了多(duo)少升(sheng)?每升(sheng)牛(niu)奶大約含鈣(gai)克(ke),一瓶牛(niu)奶含鈣(gai)多(duo)少克(ke)?
6、六年(nian)級(ji)一班(ban)有48名(ming)同學(xue),二班(ban)的(de)人(ren)數是(shi)一班(ban)的(de),三班(ban)的(de)人(ren)數是(shi)二班(ban)的(de),六年(nian)級(ji)三班(ban)有多少人(ren)?
1、一輛汽車每分(fen)鐘走7/8千(qian)米,48分(fen)鐘走了多(duo)少千(qian)米?1小時呢?
2、一個正方體燈籠框架,棱長9/20米(mi),做這樣一個燈籠需要(yao)鐵(tie)絲多少米(mi)?
3、一(yi)袋瓜子重50千(qian)克,每3/4千(qian)克瓜子裝一(yi)包(bao),裝了(le)20包(bao),還(huan)剩下多少千(qian)克?
4、甲、乙兩地相距240千(qian)米(mi),一(yi)輛汽車從(cong)甲地開往(wang)乙地,2小時(shi)行駛(shi)了全程(cheng)的3/4,汽車平均每小時(shi)行駛(shi)多少(shao)千(qian)米(mi)?
5、人的頭(tou)部約占身高的1/8,王(wang)華身高168厘米,他的頭(tou)部大約是多(duo)少厘米?
6、六(1)班有(you)48人(ren),其(qi)中(zhong)參加課(ke)外閱(yue)讀興趣小(xiao)組的(de)(de)占全班人(ren)數的(de)(de)1/4,參加課(ke)外閱(yue)讀興趣小(xiao)組的(de)(de)有(you)多少人(ren)?
7、一(yi)(yi)個足(zu)球(qiu)售(shou)價(jia)96元,一(yi)(yi)個籃球(qiu)的(de)價(jia)錢是足(zu)球(qiu)的(de)5/8,一(yi)(yi)個排(pai)球(qiu)的(de)售(shou)價(jia)是籃球(qiu)售(shou)價(jia)的(de)3/4。排(pai)球(qiu)的(de)價(jia)錢是多(duo)少元?
8、一(yi)本(ben)書60頁,已經看(kan)(kan)了(le)2/3,看(kan)(kan)了(le)多少頁?還剩下(xia)多少頁?
9、某小(xiao)區進行綠(lv)化,其中空地(di)有1200平方(fang)米,種(zhong)(zhong)(zhong)(zhong)花的(de)面(mian)積是空地(di)面(mian)積的(de)7/8,種(zhong)(zhong)(zhong)(zhong)樹面(mian)積是種(zhong)(zhong)(zhong)(zhong)花面(mian)積的(de)4/5。這個小(xiao)區種(zhong)(zhong)(zhong)(zhong)樹多少平方(fang)米?
10、甲、乙(yi)兩地(di)(di)相距126千(qian)米,一輛汽車(che)從(cong)甲地(di)(di)開往乙(yi)地(di)(di),行駛(shi)了(le)7/9還多5千(qian)米,行駛(shi)了(le)多少千(qian)米?
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