一、口算。
$3.05×4=$
$3.45+0.5=$
$3.06÷0.6=$
$154+456=$
$5.7÷19=$
$680-300=$
$0.6×0.9=$
$8.48-5.79=$
$728÷8=$
$8.19÷0.09=$
$5.36-0.8=$
$50×72=$
$\frac{7}{24}÷35=$
$\frac{1}{2}×\frac{3}{5}=$
$\frac{13}{16}÷\frac{5}{4}=$
$4-\frac{8}{3}=$
$0.8÷\frac{3}{10}=$
$\frac{10}{3}+\frac{8}{5}=$
$\frac{7}{12}-\frac{7}{18}=$
$10÷\frac{4}{5}=$
$\frac{1}{12}+\frac{5}{48}=$
$\frac{1}{2}-\frac{1}{14}=$
$0.625-\frac{1}{2}=$
$\frac{3}{7}÷\frac{8}{21}=$
$3.05×4=$
$3.45+0.5=$
$3.06÷0.6=$
$154+456=$
$5.7÷19=$
$680-300=$
$0.6×0.9=$
$8.48-5.79=$
$728÷8=$
$8.19÷0.09=$
$5.36-0.8=$
$50×72=$
$\frac{7}{24}÷35=$
$\frac{1}{2}×\frac{3}{5}=$
$\frac{13}{16}÷\frac{5}{4}=$
$4-\frac{8}{3}=$
$0.8÷\frac{3}{10}=$
$\frac{10}{3}+\frac{8}{5}=$
$\frac{7}{12}-\frac{7}{18}=$
$10÷\frac{4}{5}=$
$\frac{1}{12}+\frac{5}{48}=$
$\frac{1}{2}-\frac{1}{14}=$
$0.625-\frac{1}{2}=$
$\frac{3}{7}÷\frac{8}{21}=$
答案
1. $3.05×4=12.2$
2. $3.45+0.5=3.95$
3. $3.06÷0.6=5.1$
4. $154+456=610$
5. $5.7÷19=0.3$
6. $680-300=380$
7. $0.6×0.9=0.54$
8. $8.48-5.79=2.69$
9. $728÷8=91$
10. $8.19÷0.09=91$
11. $5.36-0.8=4.56$
12. $50×72=3600$
13. $\frac{7}{24}÷35=\frac{1}{120}$
14. $\frac{1}{2}×\frac{3}{5}=\frac{3}{10}$
15. $\frac{13}{16}÷\frac{5}{4}=\frac{13}{20}$
16. $4-\frac{8}{3}=\frac{4}{3}$
17. $0.8÷\frac{3}{10}=\frac{8}{3}$
18. $\frac{10}{3}+\frac{8}{5}=\frac{74}{15}$
19. $\frac{7}{12}-\frac{7}{18}=\frac{7}{36}$
20. $10÷\frac{4}{5}=\frac{25}{2}$
21. $\frac{1}{12}+\frac{5}{48}=\frac{3}{16}$
22. $\frac{1}{2}-\frac{1}{14}=\frac{3}{7}$
23. $0.625-\frac{1}{2}=\frac{1}{8}$
24. $\frac{3}{7}÷\frac{8}{21}=\frac{9}{8}$
2. $3.45+0.5=3.95$
3. $3.06÷0.6=5.1$
4. $154+456=610$
5. $5.7÷19=0.3$
6. $680-300=380$
7. $0.6×0.9=0.54$
8. $8.48-5.79=2.69$
9. $728÷8=91$
10. $8.19÷0.09=91$
11. $5.36-0.8=4.56$
12. $50×72=3600$
13. $\frac{7}{24}÷35=\frac{1}{120}$
14. $\frac{1}{2}×\frac{3}{5}=\frac{3}{10}$
15. $\frac{13}{16}÷\frac{5}{4}=\frac{13}{20}$
16. $4-\frac{8}{3}=\frac{4}{3}$
17. $0.8÷\frac{3}{10}=\frac{8}{3}$
18. $\frac{10}{3}+\frac{8}{5}=\frac{74}{15}$
19. $\frac{7}{12}-\frac{7}{18}=\frac{7}{36}$
20. $10÷\frac{4}{5}=\frac{25}{2}$
21. $\frac{1}{12}+\frac{5}{48}=\frac{3}{16}$
22. $\frac{1}{2}-\frac{1}{14}=\frac{3}{7}$
23. $0.625-\frac{1}{2}=\frac{1}{8}$
24. $\frac{3}{7}÷\frac{8}{21}=\frac{9}{8}$
二、把下面各比化成最简整数比,并求出比值。
$0.35:\dfrac{7}{10}$
$11:12.1$
$250$毫升$:\dfrac{5}{4}$升
$\dfrac{3}{5}:\dfrac{25}{12}$
$15:\dfrac{10}{9}$
$1.5$米$:20$分米
$0.35:\dfrac{7}{10}$
$11:12.1$
$250$毫升$:\dfrac{5}{4}$升
$\dfrac{3}{5}:\dfrac{25}{12}$
$15:\dfrac{10}{9}$
$1.5$米$:20$分米
答案
1. $0.35:\dfrac{7}{10}$ 最简整数比:$1:2$,比值:$\frac{1}{2}$
2. $11:12.1$ 最简整数比:$10:11$,比值:$\frac{10}{11}$
3. $250$毫升$:\dfrac{5}{4}$升 最简整数比:$1:5$,比值:$\frac{1}{5}$
4. $\dfrac{3}{5}:\dfrac{25}{12}$ 最简整数比:$36:125$,比值:$\frac{36}{125}$
5. $15:\dfrac{10}{9}$ 最简整数比:$27:2$,比值:$\frac{27}{2}$
6. $1.5$米$:20$分米 最简整数比:$3:4$,比值:$\frac{3}{4}$
2. $11:12.1$ 最简整数比:$10:11$,比值:$\frac{10}{11}$
3. $250$毫升$:\dfrac{5}{4}$升 最简整数比:$1:5$,比值:$\frac{1}{5}$
4. $\dfrac{3}{5}:\dfrac{25}{12}$ 最简整数比:$36:125$,比值:$\frac{36}{125}$
5. $15:\dfrac{10}{9}$ 最简整数比:$27:2$,比值:$\frac{27}{2}$
6. $1.5$米$:20$分米 最简整数比:$3:4$,比值:$\frac{3}{4}$
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