四五年级数学计算题练习
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
48.4+2.78+51.6-0.78 23.4+0.8-13.4-7.2
4.8+8.63+
5.2+0.37 3.07-0.38-1.62
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
3.25+2.76+1.75 13.75-(3.75+6.48) 7.14-0.53-2.47 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
一、乘法：
5.6×2.9 3.77×1.8 0.02×96 5.22×0.3 9.99×0.02 4.67×0.9 5×2.44 1.66×
6.1 9.4×0.02 5.6×6.5
4.88×2.9
5.61×4.3 8.9×2.4 5.5×55 9.77×0.02
1.38×5.1 8.78×8
2.6×61 0.05×0.2 4.8×1.7
57×5.7 9.46×2.8 17.8×6.4 1.5×4.9 2.5×0.88
5.5×5.2 2.22×3.33 7.6×85
6.02×0.3 6.78×8
二、除法：（循环小数的用简便方法，除不尽保留2位小数）
85.44÷16 42.6÷710 1.7÷0.001 7.5÷0.15 30.66÷6 21.24÷36 0.736÷23 43.5÷12 35.21÷7 39.6÷24 6.21÷0.03 210÷1.4 51.3÷0.27 91.2÷3.8 0.756÷0.18
0.66÷0.3 11.97÷1.5 69.6÷2.9 38.4÷0.8 15÷0.06 8.2÷0.1 20.8÷0.9 76.4÷5.4 4.7÷3 1.25÷1.2 32÷42 14.36÷2.7 8.33÷6.2 1.7÷0.03 2.41÷0.7
三、用竖式计算（保留两位位小数）
0.396÷1.2= 0.756÷0.36= 15.6×13= 0.18×15=
0.025×14= 3.06×36= 0.04×0.12＝ 3.84×2.6≈ 5.76×3＝7.15×22 90.75÷3.3 3.68×0.25 16.9÷0.13 1.55÷3.9 3.7×0.016 13.76×0.8=
5.2×0.6 8.4×1.3
6.4×0.5 4.48×0.4
5.25×5 35.4×4.2 0.042×0.54 0.76×0.32 4
0.25×0.046 2.52×3.4 1.08×25 0.12×0.5×0.16＝ 4.8×0.25＝0.125×1.4≈（保留两位小数）2.5÷0.7= （保留三位小数）10.1÷3.3= （商用循环小数）10.75÷12.5= （用乘法验算） 3.25×9.04= （用除法验算）
用简便方法计算
25×86.2×45×86.2×0.4
36×15×236×1.5×0.2
45×10245×10.2
34×27+34×7334×2.7+34×7.3 86×99+868.6×99+8.6 125×88 1.25×8.8
6.9＋4.8＋3.1 0.456＋6.22＋3.78 15.89＋(6.75－5.89) 4.02＋5.4＋0.98 5.17－1.8－3.2 13.75－(3.75＋6.48) 3.68＋
7.56－2.68 7.85＋2.34－0.85＋4.66 35.6－1.8－15.6－7.2 3.82＋2.9＋0.18＋9.1 9.6＋4.8－3.6 7.14－0.53－2.47 5.27＋2.86－0.66＋1.63 13.35－4.68＋2.65 73.8－1.64－13.8－5.36
47.8－7.45+8.8 0.398+0.36+3.64 15.75+3.59－0.59+14.25 66.86－8.66－1.34 0.25×16.2×4 (1.25－0.125)×8
3.6×102 3.72×3.5＋6.28×3.5 36.8－3.9－6.1 15.6×13.1－15.6－15.6×2.1
4.8×7.8＋78×0.52 32＋4.9－0.9 4.8×100.1 56.5×9.9＋56.5 7.09×10.8－0.8×7.09
25.48－(9.4－0.52) 4.2÷3.5 320÷1.25÷8
18.76×9.9＋18.76 3.52÷2.5÷0.4 3.9－4.1＋6.1－5.9
5.6÷3.5 9.6÷0.8÷0.4 4.2×99＋4.2
17.8÷(1.78×4) 0.49÷1.4 1.25×2.5×32 3.65×10.1
