THỰC HIỆN PHỘP TỚNH (TỚNH NHANH NẾU CÚ THỂ)A) 58.75 + 58.50 – 5...
Bài 1. Thực hiện phộp tớnh (tớnh nhanh nếu cú thể)a) 58.75 + 58.50 – 58.25k) . (–23) + 13 + (–17) + 5f) 29 – [16 + 3.(51 – 49)]b) 27.39 + 27.63 – 2.27g) 47 – [(45.2
4
– 52
.12):14]l) (–123) + |–13| + (–7)c) 62
: 9 + 50.2 – 33
.3h) 50 – [(20 – 23
) : 2 + 34]m) |–10| + |45| + (–|–455|) + |–750|n) –|–33| + (–15) + 20 – |45 – 40| d) 32
.5 + 23
.10 – 81:3i) 102
– [60 : (56
: 54
– 3.5)]o) 9.|40 – 37| – |2.13 – 52|j) 2010 – 2000 : [486 – 2(72
– 6)]e) 513
: 510
– 25.22