《2025年名校课堂七年级数学上册人教版江西专版》

计算：
(1)$-0.75×(-\frac {3}{2})÷(-\frac {9}{4}).$
(2)$3×(-1)+2^{2}+|-4|.$
(3)$(-1)×(-4)+3^{2}÷(7-4).$
(4)$(-5)×3\frac {1}{3}+2×3\frac {1}{3}+(-6)×3\frac {1}{3}.$
(5)$(-6)^{2}×[-\frac {1}{4}+(-\frac {2}{9})-(-\frac {7}{18})].$
(6)$(-1)^{4}×|-8|+(-2)^{3}×(\frac {1}{2})^{2}.$
(7)$4+16÷(-2)^{3}×|-3-1|.$
(8)$(-5)^{3}×(-\frac {3}{5})+32÷(-2^{2})×(-1\frac {1}{4}).$
(9)$-1^{2026}+8÷(-2)^{2}-|-4|×5.$
(10)$(-4)^{2}-(1-\frac {2}{3})÷2\frac {1}{3}×[6+(-3)^{3}].$

答案：
(1)原式$=-\frac {3}{4}×(-\frac {3}{2})×(-\frac {4}{9})=-\frac {1}{2}$.
(2)原式$=-3+4+4=5$.
(3)原式$=(-1)×(-4)+9÷3=4+3=7$.
(4)原式$=[(-5)+2+(-6)]×3\frac {1}{3}=(-9)×\frac {10}{3}=-30$.
(5)原式$=36×(-\frac {1}{4}-\frac {2}{9}+\frac {7}{18})=36×(-\frac {1}{4})+36×(-\frac {2}{9})+36×\frac {7}{18}=-9-8+14=-3$.
(6)原式$=1×8-8×\frac {1}{4}=8-2=6$.
(7)原式$=4+16÷(-8)×4=4+(-2)×4=4+(-8)=-4$.
(8)原式$=(-125)×(-\frac {3}{5})+32÷(-4)×(-\frac {5}{4})=75+(-8)×(-\frac {5}{4})=75+10=85$.
(9)原式$=-1+8÷4-4×5=-1+2-20=-19$.
(10)原式$=16-\frac {1}{3}÷\frac {7}{3}×(6-27)=16-\frac {1}{3}×\frac {3}{7}×(-21)=16+3=19.$