2.5×(1.9+1.9+1.9+1.9) 160×3.5×0.125
24×+72÷5+14×20% 18×4.3+36×2.05-×32
①67%×4.3+4.3×33%
②(124+0.375)×48
③0.875×25+75×87.5%
①125%+0.24×58 ②85×2943 ③5.04÷4.8+5.04÷1.2 ④59+13-227×2.7 ⑤4.2÷23×117÷75% ⑥36×34+34×63+34
78 ×2.4= 6.4÷10%= 40×2%= 0.06×100=
110 - 110 × 110 = 25×1.25×32= 597×8≈ 6287÷7≈