1 四年级下册小数练习题 一、 脱式计算，能简算的要简算。 7.8×1.3+0.9 48-1.8×24 0.25×0.46×0.4 2.5×1.3+0.9 3.8×41-3.8 （4+0.4）×2.5 0.27×3.8+0.27×6.2 2.9×100.1 27.5×101-27.5 40×0.63×0.25 3.62×25.7+3.62×74.3 0.25×4.87×4 18.8+23.6+26.4 10.95-3.74-4.26 95.59-（9.59+12.78） 25.6-(0.23+5.6)-1.77 13.75-(4.75+6.48) 7.83+2.34-0.83+6.66 3.82+2.9+0.18+9.1 5.93+0.19+2.81 25.48-((9.4-0.52) 3.07-0.38-1.62 35.6-1.8-15.6-7.2 7.3+2.7-7.3+2.7 48.4+2.78+51.6-0.78 23.4+0.8-13.4-7.2 4.8+8.63+5.2+0.37 3.25+2.76+1.75 1.27+3.9+0.73+15.1 5.84-1.8-3.2 132.44-(58.74+19.44) 7.5+4.8-6.5 7.14-0.53-2.47 13.75-(3.75+6.48) 13.45-4.68+2.55 47.8-7.45+8.2 36.8-4.5+6.98 49.8-9.6+8.8 15.2-6.8-3.45 1.76+0.65+3.24 0.134+2.66+0.8 7.5+4.9-6.3 3.45+1.79+0.65 4.85+8.63+0.37 1.76+3.44+0.35 36.54-1.76-8.66 8-2.45-1.02 23.4+3.4-0.23 6.02+3.6+1.98 3.07-0.38-1.62 7.5+4.9-6.5 36.8-3.9-6.88 3.285+1.79+0.59 23.4-0.8+13.4 32+4.9-8.6 1.29+3.7+2.71 5.93+0.49+2.06 9-2.45-1.65 21+0.56+11.3 64.89-7.88-13.6 二、能简便的要简便计算。 12.5×8.2×8 0.23×1.4＋0.23×8.6 0.125×（80＋0.8） 0.4×0.16×2.5 2 5.6×101 7.85×99 1.15×99＋1.15 16.2×101－16.2 45×0.78＋5.5×7.8 2.8+7.2×0.81 0.34×2.5×0.4 1.25×11×4×0.8 8.93×5.7＋8.93×3.3＋8.93 4.82×102 0.7×0.46+0.7×0.54 5.6-4.34+7.346 85.7-（15.3-4.8） 25.4-（15.3+7.7） 3.6－1.28＋3.09 3.8-0.46-1.723 25.6-(0.23+5.6)-1.77 13.75-(4.75+6.48) 7.83+2.34-0.83+6.66 3.82+2.9+0.18+9.1 25.48-((9.4-0.52) 35.6-1.8-15.6-7.2 5.93+0.19+2.81 7.3+2.7-7.3+2.7 3+5.2+0.37 3.07-0.38-1.62 48.4+2.78+51.6-0.78 23.4+0.8-13.4-7.2 4.8+8.6 1.27+3.9+0.73+15.1 5.84-1.8-3.2 132.44-(58.74+19.44) 7.5+4.8-6.5 13.45-4.68+2.55 3.25+2.76+1.75 13.75-(3.75+6.48) 7.14-0.53-2.47 47.8-7.45+8.2 36.8-4.5+6.98 49.8-9.6+8.8 15.2-6.8-3.45 3.45+1.79+0.65 3.45+1.79+0.65 1.76+0.65+3.24 0.134+2.66+0.8 7.5+4.9-6.3 4.85+8.63+0.37 1.76+3.44+0.35 36.54-1.76-8.66 3.45+1.79+0.65 7.5+4.9-6.5 23.4+...
