Đáp án:
↓↓↓
Giải thích các bước giải:
A, $–(–24)+(–30)–(–49)–32$
= $24-30+49-32$
=$ 11$
B, $753+(–540)–460–(–147)$
= $753-540-460+147$
= $(753+147)-(540+460)$
= $900 - 1000$
= $-100$
C, $–271–[–171+(–121)]–321$
= $-271+171-(-121)-321$
= $ -271+171+121-321$
= $(171-271)+(121-321)$
= $-100+(-200)$
= $-300$
D, $–479–(–255)+|–345|+(–121)$
= $-479+255+345-121$
= $-(479+121)+(255+345)$
= $-600+600$
= $0$
E, $–(73–52–512)+(148–127)$
= $-73+52+512+148-127$
= $-(73+127)+(52+148)+512$
= $-200+200+512$
= $512$