1. 直接写出得数。
3.4÷2=
2.7÷3=
0.42÷6=
12−0.05×4=
3.4+2.68=
1.53+2.4=
4.8×0.5=
$\frac{9}{10}$+5.1÷51=
6.9÷0.03=
$\frac{4}{5}$×0.25=
10×4.1=
4.2÷0.7−4.5=
0.6−0.45=
9.09÷0.3=
6.2÷$\frac{1}{10}$=
2.8×0.2÷$\frac{1}{5}$=
$\frac{4}{9}$×$\frac{5}{6}$=
$\frac{7}{27}$÷7=
$\frac{3}{5}$−$\frac{1}{7}$=
$\frac{5}{8}$÷10×$\frac{4}{15}$=
7÷$\frac{5}{9}$=
$\frac{3}{25}$×$\frac{5}{21}$=
6×$\frac{5}{24}$=
$\frac{10}{3}$×$\frac{27}{4}$×$\frac{1}{25}$=
$\frac{2}{5}$+$\frac{2}{15}$=
$\frac{5}{8}$×$\frac{2}{3}$=
$\frac{6}{13}$×$\frac{13}{15}$=
$\frac{5}{6}$+$\frac{1}{4}$÷1.5=
$\frac{5}{6}$+$\frac{5}{7}$=
$\frac{5}{7}$÷$\frac{5}{9}$=
$\frac{1}{3}$÷0.1=
$(\frac{7}{12}+\frac{3}{8})×48=$
3.4÷2=
2.7÷3=
0.42÷6=
12−0.05×4=
3.4+2.68=
1.53+2.4=
4.8×0.5=
$\frac{9}{10}$+5.1÷51=
6.9÷0.03=
$\frac{4}{5}$×0.25=
10×4.1=
4.2÷0.7−4.5=
0.6−0.45=
9.09÷0.3=
6.2÷$\frac{1}{10}$=
2.8×0.2÷$\frac{1}{5}$=
$\frac{4}{9}$×$\frac{5}{6}$=
$\frac{7}{27}$÷7=
$\frac{3}{5}$−$\frac{1}{7}$=
$\frac{5}{8}$÷10×$\frac{4}{15}$=
7÷$\frac{5}{9}$=
$\frac{3}{25}$×$\frac{5}{21}$=
6×$\frac{5}{24}$=
$\frac{10}{3}$×$\frac{27}{4}$×$\frac{1}{25}$=
$\frac{2}{5}$+$\frac{2}{15}$=
$\frac{5}{8}$×$\frac{2}{3}$=
$\frac{6}{13}$×$\frac{13}{15}$=
$\frac{5}{6}$+$\frac{1}{4}$÷1.5=
$\frac{5}{6}$+$\frac{5}{7}$=
$\frac{5}{7}$÷$\frac{5}{9}$=
$\frac{1}{3}$÷0.1=
$(\frac{7}{12}+\frac{3}{8})×48=$
答案
1.7
0.9
0.07
11.8
6.08
3.93
2.4
1
230
$\frac{1}{5}$
41
1.5
0.15
30.3
62
2.8
$\frac{10}{27}$
$\frac{1}{27}$
$\frac{16}{35}$
$\frac{1}{60}$
$\frac{63}{5}$
$\frac{1}{35}$
$\frac{5}{4}$
$\frac{9}{10}$
$\frac{8}{15}$
$\frac{5}{12}$
$\frac{2}{5}$
1
$\frac{65}{42}$
$\frac{9}{7}$
$\frac{10}{3}$
46
0.9
0.07
11.8
6.08
3.93
2.4
1
230
$\frac{1}{5}$
41
1.5
0.15
30.3
62
2.8
$\frac{10}{27}$
$\frac{1}{27}$
$\frac{16}{35}$
$\frac{1}{60}$
$\frac{63}{5}$
$\frac{1}{35}$
$\frac{5}{4}$
$\frac{9}{10}$
$\frac{8}{15}$
$\frac{5}{12}$
$\frac{2}{5}$
1
$\frac{65}{42}$
$\frac{9}{7}$
$\frac{10}{3}$
46
2. 计算下面各题,怎样算简便就怎样算。
$21.4 - 9.03 ÷ 0.86$
$1.7 ÷ (3.94 + 2.86) + 3.5$
$(9.28 ÷ 3.2 + 75) × \frac{13}{10}$
$\frac{4}{9} ÷ 2 ÷ \frac{2}{27} - \frac{3}{7}$
$(0.8 - \frac{3}{13}) × 5 × 13$
$\frac{1}{2} × [ ( \frac{8}{9} - \frac{2}{3} ) ÷ \frac{9}{10} ]$
$21.4 - 9.03 ÷ 0.86$
$1.7 ÷ (3.94 + 2.86) + 3.5$
$(9.28 ÷ 3.2 + 75) × \frac{13}{10}$
$\frac{4}{9} ÷ 2 ÷ \frac{2}{27} - \frac{3}{7}$
$(0.8 - \frac{3}{13}) × 5 × 13$
$\frac{1}{2} × [ ( \frac{8}{9} - \frac{2}{3} ) ÷ \frac{9}{10} ]$
答案
10.9
3.75
101.27
$\frac{18}{7}$
37
$\frac{10}{81}$
3.75
101.27
$\frac{18}{7}$
37
$\frac{10}{81}$
3. 看图列式计算。
(1)
(2)
(1)
(2)
答案
(1) $1200×(1-\frac{1}{4}-\frac{1}{3})=500$(米)
(2) $(\frac{8}{9}-\frac{1}{8}×2)÷3=\frac{23}{108}$(吨)
(2) $(\frac{8}{9}-\frac{1}{8}×2)÷3=\frac{23}{108}$(吨)
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