一、直接写出得数。(共 32 分)
$\frac{1}{5}+\frac{1}{6}=$ $\frac{2}{7}×\frac{5}{8}=$ $10.05 - 9.5=$ $0.36 + 0.4÷4=$
$9.5×2=$ $\frac{4}{5}-\frac{1}{3}=$ $4÷\frac{2}{3}=$ $\frac{2}{11}×3÷\frac{1}{6}=$
$150×\frac{9}{25}=$ $21×\frac{8}{7}=$ $\frac{3}{2}÷\frac{6}{7}=$ $\frac{5}{9}×(\frac{9}{5}+18)=$
$0.78÷1.3=$ $28×25=$ $3.02×5=$ $7.2 - 1.2÷0.5=$
$\frac{1}{8}÷\frac{3}{4}=$ $40.5÷0.5=$ $\frac{10}{11}-\frac{2}{3}=$ $500×30\%×4=$
$13÷0.26=$ $0.2 + 0.3^{2}=$ $2.7÷0.06=$ $5×\frac{1}{7}÷5×\frac{1}{7}=$
$\frac{15}{16}×\frac{32}{5}=$ $3.14×500=$ $\frac{9}{20}÷\frac{3}{5}=$ $\frac{7}{8}÷\frac{35}{6}×\frac{5}{3}=$
$5.01×15=$ $2.5×80\%=$ $3.69÷30\%=$ $3.14×4^{2}÷2=$

$\frac{11}{30}$ $\frac{5}{28}$ $0.55$ $0.46$ $19$ $\frac{7}{15}$ $6$ $\frac{36}{11}$ $54$ $24$ $\frac{7}{4}$ $11$ $0.6$ $700$ $15.1$ $4.8$ $\frac{1}{6}$ $81$ $\frac{8}{33}$ $600$ $50$ $0.29$ $45$ $\frac{1}{49}$ $6$ $1570$ $\frac{3}{4}$ $\frac{1}{4}$ $75.15$ $2$ $12.3$ $25.12$

二、在括号里填合适的数。(共 8 分)
$\frac{(\ )}{6}=\frac{1.75}{3}$ $2.3×20 = 4.6×(\ )$ $\frac{1}{3}×(\ )=\frac{5}{8}×\frac{4}{5}$
$(\ )×1.25 = 2×5$ $0.85:1.7=\frac{(\ )}{8}$ $(\ ):0.2=\frac{10}{17}:\frac{2}{13}$
$5cm:24km = 1:(\ )$ $8dm:(\ )km = 1:150000$

$3.5$ $10$ $\frac{3}{2}$ $8$ $4$ $\frac{13}{17}$ $480000$ $120$

三、计算下面各题,能简算的要简算。(共 24 分)
$\frac{12}{5}×(\frac{5}{6}+\frac{1}{3})+\frac{3}{5}$         $\frac{17}{25}×99+\frac{17}{25}$         $4.5×3.7 + 45\%×13 + 4.5×5$
$48×(\frac{11}{12}-\frac{3}{4}+\frac{1}{6})$         $\frac{6}{7}÷[\frac{2}{5}×(\frac{1}{2}-\frac{1}{7})]$         $1.5×6.6 + 4.5×7.8$

1. 计算$\frac{12}{5}×(\frac{5}{6}+\frac{1}{3})+\frac{3}{5}$
解：
$\begin{aligned}&\frac{12}{5}×(\frac{5}{6}+\frac{1}{3})+\frac{3}{5}\\=&\frac{12}{5}×(\frac{5}{6}+\frac{2}{6})+\frac{3}{5}\\=&\frac{12}{5}×\frac{7}{6}+\frac{3}{5}\\=&\frac{14}{5}+\frac{3}{5}\\=&\frac{17}{5}\\=&3\frac{2}{5}\end{aligned}$
2. 计算$\frac{17}{25}×99+\frac{17}{25}$
解：
$\begin{aligned}&\frac{17}{25}×99+\frac{17}{25}\\=&\frac{17}{25}×(99 + 1)\\=&\frac{17}{25}×100\\=&68\end{aligned}$
3. 计算$4.5×3.7 + 45\%×13 + 4.5×5$
解：
$\begin{aligned}&4.5×3.7 + 0.45×13 + 4.5×5\\=&4.5×3.7 + 4.5×1.3 + 4.5×5\\=&4.5×(3.7 + 1.3 + 5)\\=&4.5×10\\=&45\end{aligned}$
4. 计算$48×(\frac{11}{12}-\frac{3}{4}+\frac{1}{6})$
解：
$\begin{aligned}&48×(\frac{11}{12}-\frac{3}{4}+\frac{1}{6})\\=&48×\frac{11}{12}-48×\frac{3}{4}+48×\frac{1}{6}\\=&44 - 36 + 8\\=&16\end{aligned}$
5. 计算$\frac{6}{7}÷[\frac{2}{5}×(\frac{1}{2}-\frac{1}{7})]$
解：
$\begin{aligned}&\frac{6}{7}÷[\frac{2}{5}×(\frac{1}{2}-\frac{1}{7})]\\=&\frac{6}{7}÷[\frac{2}{5}×(\frac{7}{14}-\frac{2}{14})]\\=&\frac{6}{7}÷(\frac{2}{5}×\frac{5}{14})\\=&\frac{6}{7}÷\frac{1}{7}\\=&\frac{6}{7}×7\\=&6\end{aligned}$
6. 计算$1.5×6.6 + 4.5×7.8$
解：
$\begin{aligned}&1.5×6.6 + 4.5×7.8\\=&1.5×6.6 + 1.5×3×7.8\\=&1.5×6.6 + 1.5×23.4\\=&1.5×(6.6 + 23.4)\\=&1.5×30\\=&45\end{aligned}$
综上，答案依次为$3\frac{2}{5}$；$68$；$45$；$16$；$6$；$45$。