《2025年通城学典初中数学运算能手七年级上册人教版》

一、填空题
1. $(-4.9)÷0.7=$-7
2. $(-5)÷(+\frac {1}{5})=$-25
3. $(-\frac {1}{27})×(-3)=$$\frac{1}{9}$
4. $(-\frac {1}{16})÷(+\frac {1}{4})=$$-\frac{1}{4}$
5. $(-2)×(-3)÷(-5)=$-1.2
6. $(-2.4)×(+\frac {1}{4})×(-5)=$3
7. $[(+\frac {1}{4})+(-\frac {1}{6})]×(-24)=$-2
8. $(-6)×[(+\frac {1}{3})-(-5)]=$-32

答案： 1. -7 2. -25 3. $\frac{1}{9}$ 4. $-\frac{1}{4}$ 5. -1.2 6. 3 7. -2 8. -32

二、计算题
9. $(-2\frac {1}{2})×(-\frac {1}{3})×\frac {3}{10}×(-1\frac {1}{3})$
10. $(-0.125)÷(-\frac {2}{5})÷(-\frac {5}{8})$
11. $(-36)×(1\frac {2}{3}-\frac {5}{9}+0.25)$
12. $14\frac {14}{15}×(-5)$
13. $(-3\frac {3}{5})×(+\frac {5}{9})÷(-\frac {2}{3})$
14. $(-5)÷\frac {2}{3}×(-1\frac {1}{6})×(-1\frac {1}{7})$
15. $(-27)÷(-\frac {3}{2})+(+36)÷(-\frac {3}{2})$
16. $(-18)÷[(+\frac {1}{3})-(-\frac {1}{9})]$

答案： 9. $-\frac{1}{3}$ 10. $-\frac{1}{2}$ 11. -49 12. $-74\frac{2}{3}$ 13. 3 14. -10 15. -6 16. $-\frac{81}{2}$