2026年全效学习同步学练测七年级数学上册人教版第43页答案
1. 计算:
(1)$34+(-15)-(-16)-(+25)$;
(2)$\frac{11}{5} × ( \frac{1}{3} - \frac{1}{2} ) × \frac{3}{11} ÷ \frac{5}{4}$;
(3)$8-(-4)÷ 2^2 × 3$;
(4)$-2^2 + [ (-4) × ( -\frac{1}{2} ) - | -3 | ]$;
(5)$| -2 | - 3^2 + 18 × ( -\frac{1}{2} )^3$;
(6)$-1^{2025} -6 × ( -\frac{1}{3} ) + 2^2 ÷ (-2)$;
(7)$-2^3 + (-5)^2 × \frac{2}{5} - | -3 |$;
(8)$2 ÷ \frac{1}{3} + (-2)^3 - |5-8| +4 × (-3)$;
(9)$-3^2 × \frac{1}{3} × [ (-5)^2 × ( -\frac{3}{5} ) -256 ÷ (-4) × \frac{1}{4} ]$;
(10)$(-10)^3 + [ (-4)^2 - (1 -3^2) × 2 ]$.

答案

(1)10 (2)$-\frac{2}{25}$ (3)11 (4)$-5$ (5)$-\frac{37}{4}$ (6)$-1$ (7)$-1$ (8)$-17$ (9)$-3$ (10)$-968$