登录
一、口算。
35.6 - 5.6 =
9.6 ÷ 0.16 =
1.25 × 80 =
1050 ÷ 5 =
8.4 × 0.04 =
0.88 ÷ 0.22 =
11 × 90 =
1.48 × 5 =
54.78 - 34.43 =
36.9 ÷ 0.03 =
18.5 + 14.8 =
0.48 × 60 =
$\frac{2}{3} + \frac{7}{20} =$
$\frac{3}{5} ÷ \frac{3}{10} =$
$\frac{8}{9} × \frac{3}{8} =$
0.75 - $\frac{1}{20} =$
$\frac{8}{3} ÷ \frac{8}{5} =$
$3.5 × \frac{2}{5} =$
$\frac{3}{2} × \frac{2}{3} =$
$\frac{7}{20} × \frac{5}{14} =$
$\frac{2}{15} + \frac{1}{5} =$
$\frac{5}{12} × \frac{9}{10} =$
$\frac{3}{16} + \frac{1}{12} =$
$\frac{3}{8} × \frac{1}{6} =$
35.6 - 5.6 =
9.6 ÷ 0.16 =
1.25 × 80 =
1050 ÷ 5 =
8.4 × 0.04 =
0.88 ÷ 0.22 =
11 × 90 =
1.48 × 5 =
54.78 - 34.43 =
36.9 ÷ 0.03 =
18.5 + 14.8 =
0.48 × 60 =
$\frac{2}{3} + \frac{7}{20} =$
$\frac{3}{5} ÷ \frac{3}{10} =$
$\frac{8}{9} × \frac{3}{8} =$
0.75 - $\frac{1}{20} =$
$\frac{8}{3} ÷ \frac{8}{5} =$
$3.5 × \frac{2}{5} =$
$\frac{3}{2} × \frac{2}{3} =$
$\frac{7}{20} × \frac{5}{14} =$
$\frac{2}{15} + \frac{1}{5} =$
$\frac{5}{12} × \frac{9}{10} =$
$\frac{3}{16} + \frac{1}{12} =$
$\frac{3}{8} × \frac{1}{6} =$
答案
1. 35.6 - 5.6 = 30
2. 9.6 ÷ 0.16 = 60
3. 1.25 × 80 = 100
4. 1050 ÷ 5 = 210
5. 8.4 × 0.04 = 0.336
6. 0.88 ÷ 0.22 = 4
7. 11 × 90 = 990
8. 1.48 × 5 = 7.4
9. 54.78 - 34.43 = 20.35
10. 36.9 ÷ 0.03 = 1230
11. 18.5 + 14.8 = 33.3
12. 0.48 × 60 = 28.8
13. $\frac{2}{3} + \frac{7}{20} = \frac{61}{60}$
14. $\frac{3}{5} ÷ \frac{3}{10} = 2$
15. $\frac{8}{9} × \frac{3}{8} = \frac{1}{3}$
16. 0.75 - $\frac{1}{20} = \frac{7}{10}$
17. $\frac{8}{3} ÷ \frac{8}{5} = \frac{5}{3}$
18. $3.5 × \frac{2}{5} = \frac{7}{5}$
19. $\frac{3}{2} × \frac{2}{3} = 1$
20. $\frac{7}{20} × \frac{5}{14} = \frac{1}{8}$
21. $\frac{2}{15} + \frac{1}{5} = \frac{1}{3}$
22. $\frac{5}{12} × \frac{9}{10} = \frac{3}{8}$
23. $\frac{3}{16} + \frac{1}{12} = \frac{13}{48}$
24. $\frac{3}{8} × \frac{1}{6} = \frac{1}{16}$
2. 9.6 ÷ 0.16 = 60
3. 1.25 × 80 = 100
4. 1050 ÷ 5 = 210
5. 8.4 × 0.04 = 0.336
6. 0.88 ÷ 0.22 = 4
7. 11 × 90 = 990
8. 1.48 × 5 = 7.4
9. 54.78 - 34.43 = 20.35
10. 36.9 ÷ 0.03 = 1230
11. 18.5 + 14.8 = 33.3
12. 0.48 × 60 = 28.8
13. $\frac{2}{3} + \frac{7}{20} = \frac{61}{60}$
14. $\frac{3}{5} ÷ \frac{3}{10} = 2$
15. $\frac{8}{9} × \frac{3}{8} = \frac{1}{3}$
16. 0.75 - $\frac{1}{20} = \frac{7}{10}$
17. $\frac{8}{3} ÷ \frac{8}{5} = \frac{5}{3}$
18. $3.5 × \frac{2}{5} = \frac{7}{5}$
19. $\frac{3}{2} × \frac{2}{3} = 1$
20. $\frac{7}{20} × \frac{5}{14} = \frac{1}{8}$
21. $\frac{2}{15} + \frac{1}{5} = \frac{1}{3}$
22. $\frac{5}{12} × \frac{9}{10} = \frac{3}{8}$
23. $\frac{3}{16} + \frac{1}{12} = \frac{13}{48}$
24. $\frac{3}{8} × \frac{1}{6} = \frac{1}{16}$
二、根据比例的基本性质，在括号里填合适的数。
$18:0.2=(\quad):\dfrac{1}{4}$
$6:1.2=3.2:(\quad)$
$(\quad):7=15:2.5$
$\dfrac{6}{5}:(\quad)=0.75:3.5$
$\dfrac{5}{4}:(\quad)=\dfrac{3}{8}:\dfrac{2}{5}$
$\dfrac{7}{4}:\dfrac{32}{9}=\dfrac{7}{16}:(\quad)$
$(\quad):25=0.36:3$
$36:(\quad)=1.8:5$
$(\quad):1.5=\dfrac{1}{3}:5$
$4.5:4=9:(\quad)$
$(\quad):\dfrac{7}{40}=5:\dfrac{1}{7}$
$0.25:\dfrac{2}{3}=\dfrac{1}{8}:(\quad)$
$(\quad):2.4=2.5:\dfrac{3}{5}$
$0.21:(\quad)=0.35:3$
$1.5:(\quad)=3.6:12$
$18:0.2=(\quad):\dfrac{1}{4}$
$6:1.2=3.2:(\quad)$
$(\quad):7=15:2.5$
$\dfrac{6}{5}:(\quad)=0.75:3.5$
$\dfrac{5}{4}:(\quad)=\dfrac{3}{8}:\dfrac{2}{5}$
$\dfrac{7}{4}:\dfrac{32}{9}=\dfrac{7}{16}:(\quad)$
$(\quad):25=0.36:3$
$36:(\quad)=1.8:5$
$(\quad):1.5=\dfrac{1}{3}:5$
$4.5:4=9:(\quad)$
$(\quad):\dfrac{7}{40}=5:\dfrac{1}{7}$
$0.25:\dfrac{2}{3}=\dfrac{1}{8}:(\quad)$
$(\quad):2.4=2.5:\dfrac{3}{5}$
$0.21:(\quad)=0.35:3$
$1.5:(\quad)=3.6:12$
答案
1. $18:0.2=(22.5):\dfrac{1}{4}$
2. $6:1.2=3.2:(0.64)$
3. $(42):7=15:2.5$
4. $\dfrac{6}{5}:(5.6)=0.75:3.5$
5. $\dfrac{5}{4}:(\dfrac{4}{3})=\dfrac{3}{8}:\dfrac{2}{5}$
6. $\dfrac{7}{4}:\dfrac{32}{9}=\dfrac{7}{16}:(\dfrac{8}{9})$
7. $(3):25=0.36:3$
8. $36:(100)=1.8:5$
9. $(0.1):1.5=\dfrac{1}{3}:5$
10. $4.5:4=9:(8)$
11. $(\dfrac{49}{8}):\dfrac{7}{40}=5:\dfrac{1}{7}$
12. $0.25:\dfrac{2}{3}=\dfrac{1}{8}:(\dfrac{1}{3})$
13. $(10):2.4=2.5:\dfrac{3}{5}$
14. $0.21:(1.8)=0.35:3$
15. $1.5:(5)=3.6:12$
2. $6:1.2=3.2:(0.64)$
3. $(42):7=15:2.5$
4. $\dfrac{6}{5}:(5.6)=0.75:3.5$
5. $\dfrac{5}{4}:(\dfrac{4}{3})=\dfrac{3}{8}:\dfrac{2}{5}$
6. $\dfrac{7}{4}:\dfrac{32}{9}=\dfrac{7}{16}:(\dfrac{8}{9})$
7. $(3):25=0.36:3$
8. $36:(100)=1.8:5$
9. $(0.1):1.5=\dfrac{1}{3}:5$
10. $4.5:4=9:(8)$
11. $(\dfrac{49}{8}):\dfrac{7}{40}=5:\dfrac{1}{7}$
12. $0.25:\dfrac{2}{3}=\dfrac{1}{8}:(\dfrac{1}{3})$
13. $(10):2.4=2.5:\dfrac{3}{5}$
14. $0.21:(1.8)=0.35:3$
15. $1.5:(5)=3.6:12$
