1. 填空:
(1)$35.24+23.77=\_\_\_\_\_\_;$
(2)$5-1\dfrac{1}{4}=\_\_\_\_\_\_;$
(3)$0.08×125=\_\_\_\_\_\_;$
(4)$4÷3\dfrac{1}{2}÷1=\_\_\_\_\_\_;$
(5)$0.25+2\dfrac{3}{4}×0=\_\_\_\_\_\_;$
(6)$(10.5-4.5)÷\dfrac{12}{13}=\_\_\_\_\_\_;$
(7)$8.9×9+8.9=\_\_\_\_\_\_;$
(8)$2.25×\dfrac{1}{27}÷\dfrac{1}{24}=\_\_\_\_\_\_.$

1.(1)59.01 (2)$\dfrac{15}{4}$ (3)10 (4)$\dfrac{8}{7}$ (5)0.25 (6)$\dfrac{13}{2}$ (7)89 (8)2

2. 计算:
(1)$18.917-(4.917+5.73)$；
(2)$\frac{5}{12}+\frac{2}{3}×\frac{3}{4}$；
(3)$12.5×(4.3-3.5)÷8$；
(4)$\frac{5}{12}×\frac{1}{13}-\frac{1}{4}÷13$；
(5)$(\frac{1}{6}+\frac{7}{15})÷\frac{2}{5}+\frac{7}{12}$；
(6)$2.25×\frac{3}{5}+2.75÷1\frac{2}{3}+0.6$；
(7)$(0.25+\frac{7}{4})×(2.25-0.75)$；
(8)$1\frac{2}{3}÷(\frac{9}{8}×\frac{10}{9})-\frac{1}{6}$。

2.(1)8.27 (2)$\dfrac{11}{12}$ (3)1.25 (4)$\dfrac{1}{78}$ (5)$2\dfrac{1}{6}$ (6)3.6 (7)3 (8)$\dfrac{7}{6}$