2026年预习新初一级综合第68页答案
练习1
计算: (1) $(-5)+(-2)$; (2) $(+4)+(-8)$; (3) $0+(-6)$;
(4) $(+13)+(-2)$; (5) $(-\dfrac{1}{2})+(+\dfrac{1}{4})$; (6) $(-\dfrac{1}{3})+(-\dfrac{1}{3})$.

答案

(1) -7
(2) -4
(3) -6
(4) 11
(5) $-\dfrac{1}{4}$
(6) $-\dfrac{2}{3}$