Tính một cách hợp lí. a) A = 32,125 – (6,325 + 12,125) – (37 + 13,675);
Giải thích
a) A = 32,125 – (6,325 + 12,125) – (37 + 13,675)
= 32,125 – 6,325 – 12,125 – 37 – 13,675
= (32,125 – 12,125) – (6,325 + 13,675) – 37
= 20 – 20 – 37
= –37
Vậy A = –37.
a) A = 32,125 – (6,325 + 12,125) – (37 + 13,675)
= 32,125 – 6,325 – 12,125 – 37 – 13,675
= (32,125 – 12,125) – (6,325 + 13,675) – 37
= 20 – 20 – 37
= –37
Vậy A = –37.