4、5-1610÷2 x5=32.....................最新资料整理推荐.....................20-3.5 x3= 15-2.4x3-3.720-3.7 x 3-2.9 40-24.5-8.7 x 2= 36.2-8 x 1.256.32+2.52÷1.2= 3.7+4.536÷7.2-0.5 0.25 x 1.8+0.735÷0.07358.34+7.1 x(4.36-2.74) 0.125 x 500 x0.216 x 0.25 x6÷1.66-0.28÷4+2.5 x818-(3.615 x1.5+6.3) (30-19.8) x0.8+35
5、.73.2+(0.17+7.2÷0.9 x1.2)15.32 x4+4.68 x42.55 x1.5+1.5+6.45 x1.532.....................最新资料整理推荐..................... 15÷(0.15 x0.4)6.75-(0.9+3.75)73.8-1.64-13.8-5.3616-7 x23.6÷0.4-1.2 x53.6 x2÷0.9 0.75÷0.3÷0.5-3.238.5-5 x 1.7 7-0.5 x14+0.836.75+25.2÷123.6÷1.2+0.5 x 57-0.5 x 14+0.