Tính: a) 12 × 16 + 14 × 3 - 255 ÷ 17, b) 68 + 42.5 - 625 ÷ 25, c) 25 × 8 - 12 ÷ 5 + 272 ÷ 17 - 8, d) 125 ÷ 25 + 14 - 142 ÷ 41

Bài 1:Tính
a)12×16+14×3-255÷17
b)68+42.5-625÷25
c)25×8-12÷5+272÷17-8
d)125÷25+14-142÷41