1、直接写出得数。
0.45×2.5＝
0.8×1.25＝
0.3×3.6＝
0.3×0.3＝
10×0.07＝
0.3×1.4＝
0.05×7＝
0.92×0.4＝
0.2×0.26＝
0.14×4＝
0.02×0.1＝
1.2×0.3＝0.2×0.4＝
8.2＋1.8＝
100－35.22＝
2.3×4＝
2.5×0.4＝
2.4×5＝
0.22×4＝
3.25×0＝ 0.9－0.52＝
3.99×1＝
0×3.52＝
12.5×8＝
1÷0.5=
8÷10 =
10-1.8-7.2=
0.43+3.57=
2.5×4×12=
1.05×100=
0.9×0.8=
0.96÷3=
1.47÷0.7=
5.4÷6=
4÷0.8 = 0.16.5×10=
0.56×100=
3.78×100=
3.215×100=
0.8×10=
4.08×100=
1.1×0.2 =
0.6×0.8 =
3×0.9=
2.5×0.4=
3.6×0.4=
12.5×8=
50×0.04=
80×0.3 =
1.1×9=
0.16×5 ＝
1.78＋2.2 =
9.6÷0.6 =
1.2×0.5-0.4 =
0.7÷0.01 =
2.5×0.4 =
12－3.9=
1.25×8÷1.25 =
6.6÷0.66 =
5.37×0+4.63 =
4.2÷3.5＝
1.6+2.4×0.3 =
2.14－0.9＝
27＋456＋73=
0.3×0.3=
7.2＋2.8＝
0.9÷0.01＝
12÷0.3=
2.87÷0.7＝
13÷4＝
0.96÷0.3＝
1.5×0.4＝
7÷0.25＝
2.5×0.7×0.8=
8－2.5＝
16÷1.6＝
5.6×1.01=
8×（2.5＋0.25）＝
0.36＋0.64＝
64.32÷16＝
72.8÷0.8＝
8.4÷4.2＝
13.8＋9.9＝
2.4×2.5＝
0.05×0.8＝
1.25×0.8×0.5＝
12×2.5＝
1.23×3＝
3.2÷1.6＝
3.5＋3.5×3＝
19.6÷2＝
8.8÷2.2=
0.75×4＝
（1.5＋0.25）×4＝
0.5×0.8= 8.4×0.2=
1.6×0.2＝
7.2×0.3=
2.8×0.3＝
0.9÷0.15=
1.8×0.4=
5.5÷0.55=
0.08×100=
2.2÷0.11=
5.46 ＋ 4.54=
12.5×0.8=
0.35×0.3=
1.4×5=
2.8×4=
19.6÷4=
22.5×4=
2、用竖式计算
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＝
（保留一位小数）
7.15×22
90.75÷3.3
3.68×0.2
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
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）
3、脱式计算（能简算的要简算）
2.5×7.1×4
16.12×99＋16.12
5.2×0.9＋0.9
7.28×99+7.28
4.3×50×0.2
64－2.64×0.5
3.94+34.3×0.2
26×15.7 ＋ 15.7×24
(2.275 ＋ 0.625)×0.28
1.2×(9.6÷2.4)÷4.8
8.9×1.1×4.7
2.7×5.4×3.9
3.6×9.85-5.46
8.05×3.4+7.6
6.58×4.5×0.9
2.8×0.5+1.58
32＋4.9－0.9
4.8－4.8×0.5
(1.25－0.125)×8
4.8×100.1
56.5×99＋56.5
7.09×10.8－0.8×7.09
4.85 + 0.35 ÷ 1.4
8.7 × 17.4 - 8.7 × 7.4
2．13.×0.×8257
12.5×0.4×2.5×8
0.87×3.16+4.64
9.5×101
0.68 ÷（5.2 -3.5）× 1.25
4.8 ×（15 ÷ 2.4）
40.5 ÷ 0.81 × 0.18
6.81+6.81×99
0.25×185×40
4 .4×0.8－3.4×0.8
0.25×39+0.25
(9.37+9.37+9.37+9.37)× 2．5
4.2.×1.＋1.×1.75
46×0.33+54×0.3
2.37×6.3+2.37×3.7
2.5×1.25×0.32
3.8×10.1
0.125×72
2.5×(3.8×0.04)
7.69×101
3.8×10.1