登录
一、口算。
77÷0.7＝
1.02－0.09＝
3.9×0.7＝
0.8×0.16＝
328÷8＝
3.68＋1.34＝
500－234＝
305＋789＝
40.8÷0.8＝
48×50＝
0.94－0.65＝
3.9＋6.1＝
$\frac{4}{5} - \frac{7}{10}=$
$\frac{3}{2} × \frac{16}{15}=$
$15 ÷ \frac{3}{5}=$
$9 × \frac{5}{9}=$
$\frac{5}{8} ÷ 1.5=$
$\frac{5}{8} ÷ \frac{5}{7}=$
$\frac{2}{3} + \frac{1}{8}=$
$\frac{1}{16} ÷ \frac{1}{12}=$
$\frac{2}{3} ÷ \frac{3}{4}=$
$\frac{5}{12} × \frac{4}{15}=$
$\frac{3}{4} - \frac{1}{3}=$
$\frac{7}{8} × \frac{8}{7}=$
77÷0.7＝
1.02－0.09＝
3.9×0.7＝
0.8×0.16＝
328÷8＝
3.68＋1.34＝
500－234＝
305＋789＝
40.8÷0.8＝
48×50＝
0.94－0.65＝
3.9＋6.1＝
$\frac{4}{5} - \frac{7}{10}=$
$\frac{3}{2} × \frac{16}{15}=$
$15 ÷ \frac{3}{5}=$
$9 × \frac{5}{9}=$
$\frac{5}{8} ÷ 1.5=$
$\frac{5}{8} ÷ \frac{5}{7}=$
$\frac{2}{3} + \frac{1}{8}=$
$\frac{1}{16} ÷ \frac{1}{12}=$
$\frac{2}{3} ÷ \frac{3}{4}=$
$\frac{5}{12} × \frac{4}{15}=$
$\frac{3}{4} - \frac{1}{3}=$
$\frac{7}{8} × \frac{8}{7}=$
答案
1. 77÷0.7＝110
2. 1.02－0.09＝0.93
3. 3.9×0.7＝2.73
4. 0.8×0.16＝0.128
5. 328÷8＝41
6. 3.68＋1.34＝5.02
7. 500－234＝266
8. 305＋789＝1094
9. 40.8÷0.8＝51
10. 48×50＝2400
11. 0.94－0.65＝0.29
12. 3.9＋6.1＝10
13. $\frac{4}{5} - \frac{7}{10} = \frac{1}{10}$
14. $\frac{3}{2} × \frac{16}{15} = \frac{8}{5}$
15. $15 ÷ \frac{3}{5} = 25$
16. $9 × \frac{5}{9} = 5$
17. $\frac{5}{8} ÷ 1.5 = \frac{5}{12}$
18. $\frac{5}{8} ÷ \frac{5}{7} = \frac{7}{8}$
19. $\frac{2}{3} + \frac{1}{8} = \frac{19}{24}$
20. $\frac{1}{16} ÷ \frac{1}{12} = \frac{3}{4}$
21. $\frac{2}{3} ÷ \frac{3}{4} = \frac{8}{9}$
22. $\frac{5}{12} × \frac{4}{15} = \frac{1}{9}$
23. $\frac{3}{4} - \frac{1}{3} = \frac{5}{12}$
24. $\frac{7}{8} × \frac{8}{7} = 1$
2. 1.02－0.09＝0.93
3. 3.9×0.7＝2.73
4. 0.8×0.16＝0.128
5. 328÷8＝41
6. 3.68＋1.34＝5.02
7. 500－234＝266
8. 305＋789＝1094
9. 40.8÷0.8＝51
10. 48×50＝2400
11. 0.94－0.65＝0.29
12. 3.9＋6.1＝10
13. $\frac{4}{5} - \frac{7}{10} = \frac{1}{10}$
14. $\frac{3}{2} × \frac{16}{15} = \frac{8}{5}$
15. $15 ÷ \frac{3}{5} = 25$
16. $9 × \frac{5}{9} = 5$
17. $\frac{5}{8} ÷ 1.5 = \frac{5}{12}$
18. $\frac{5}{8} ÷ \frac{5}{7} = \frac{7}{8}$
19. $\frac{2}{3} + \frac{1}{8} = \frac{19}{24}$
20. $\frac{1}{16} ÷ \frac{1}{12} = \frac{3}{4}$
21. $\frac{2}{3} ÷ \frac{3}{4} = \frac{8}{9}$
22. $\frac{5}{12} × \frac{4}{15} = \frac{1}{9}$
23. $\frac{3}{4} - \frac{1}{3} = \frac{5}{12}$
24. $\frac{7}{8} × \frac{8}{7} = 1$
二、根据比例的基本性质，在括号里填合适的数。
$(\quad):3=0.6:4$
$\frac{5}{12}:(\quad)=2:9$
$\frac{1}{3}:(\quad)=\frac{7}{5}:\frac{9}{5}$
$(\quad):\frac{3}{4}=16:36$
$\frac{5}{2}:(\quad)=\frac{1}{20}:\frac{1}{5}$
$2.5:0.9=30:(\quad)$
$(\quad):8=\frac{3}{4}:\frac{1}{5}$
$(\quad):1.2=3:4$
$\frac{3}{2}:\frac{1}{5}=\frac{3}{4}:(\quad)$
$2.5:3=10:(\quad)$
$1.2:5=24:(\quad)$
$\frac{1}{3}:\frac{2}{5}=(\quad):\frac{3}{4}$
$(\quad):12=0.16:16$
$4.5:\frac{3}{4}=(\quad):\frac{4}{3}$
$0.6:(\quad)=\frac{1}{24}:\frac{1}{8}$
$(\quad):3=0.6:4$
$\frac{5}{12}:(\quad)=2:9$
$\frac{1}{3}:(\quad)=\frac{7}{5}:\frac{9}{5}$
$(\quad):\frac{3}{4}=16:36$
$\frac{5}{2}:(\quad)=\frac{1}{20}:\frac{1}{5}$
$2.5:0.9=30:(\quad)$
$(\quad):8=\frac{3}{4}:\frac{1}{5}$
$(\quad):1.2=3:4$
$\frac{3}{2}:\frac{1}{5}=\frac{3}{4}:(\quad)$
$2.5:3=10:(\quad)$
$1.2:5=24:(\quad)$
$\frac{1}{3}:\frac{2}{5}=(\quad):\frac{3}{4}$
$(\quad):12=0.16:16$
$4.5:\frac{3}{4}=(\quad):\frac{4}{3}$
$0.6:(\quad)=\frac{1}{24}:\frac{1}{8}$
答案
1. $0.45:3=0.6:4$
2. $\frac{5}{12}:\frac{15}{8}=2:9$
3. $\frac{1}{3}:\frac{3}{7}=\frac{7}{5}:\frac{9}{5}$
4. $\frac{1}{3}:\frac{3}{4}=16:36$
5. $\frac{5}{2}:10=\frac{1}{20}:\frac{1}{5}$
6. $2.5:0.9=30:10.8$
7. $30:8=\frac{3}{4}:\frac{1}{5}$
8. $0.9:1.2=3:4$
9. $\frac{3}{2}:\frac{1}{5}=\frac{3}{4}:\frac{1}{10}$
10. $2.5:3=10:12$
11. $1.2:5=24:100$
12. $\frac{1}{3}:\frac{2}{5}=\frac{5}{8}:\frac{3}{4}$
13. $0.12:12=0.16:16$
14. $4.5:\frac{3}{4}=8:\frac{4}{3}$
15. $0.6:1.8=\frac{1}{24}:\frac{1}{8}$
2. $\frac{5}{12}:\frac{15}{8}=2:9$
3. $\frac{1}{3}:\frac{3}{7}=\frac{7}{5}:\frac{9}{5}$
4. $\frac{1}{3}:\frac{3}{4}=16:36$
5. $\frac{5}{2}:10=\frac{1}{20}:\frac{1}{5}$
6. $2.5:0.9=30:10.8$
7. $30:8=\frac{3}{4}:\frac{1}{5}$
8. $0.9:1.2=3:4$
9. $\frac{3}{2}:\frac{1}{5}=\frac{3}{4}:\frac{1}{10}$
10. $2.5:3=10:12$
11. $1.2:5=24:100$
12. $\frac{1}{3}:\frac{2}{5}=\frac{5}{8}:\frac{3}{4}$
13. $0.12:12=0.16:16$
14. $4.5:\frac{3}{4}=8:\frac{4}{3}$
15. $0.6:1.8=\frac{1}{24}:\frac{1}{8}$
