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1. 直接写出得数。
0.7×7=
7×0.3=
1.5×60=
3.6×5×2=
4×0.3=
0×1.33=
12×0.08=
0.7×8×10=
0.9×6=
1.6×4=
40×2.5=
2.8×3×2=
0.6×3=
1.1×8=
10.5×3=
2×5.2×5=
32×0.1=
0.8×20=
2×0.27=
3.1×20×3=
1.8×2=
1.7×9=
4×0.28=
1.25×8×3=
1.2×4=
2.2×5=
0.45×6=
0.24×5×2=
0.36×3=
50×1.3=
1.52×2=
0.05×12×3=
0.7×7=
4.9
7×0.3=
2.1
1.5×60=
90
3.6×5×2=
36
4×0.3=
1.2
0×1.33=
0
12×0.08=
0.96
0.7×8×10=
56
0.9×6=
5.4
1.6×4=
6.4
40×2.5=
100
2.8×3×2=
16.8
0.6×3=
1.8
1.1×8=
8.8
10.5×3=
31.5
2×5.2×5=
52
32×0.1=
3.2
0.8×20=
16
2×0.27=
0.54
3.1×20×3=
186
1.8×2=
3.6
1.7×9=
15.3
4×0.28=
1.12
1.25×8×3=
30
1.2×4=
4.8
2.2×5=
11
0.45×6=
2.7
0.24×5×2=
2.4
0.36×3=
1.08
50×1.3=
65
1.52×2=
3.04
0.05×12×3=
1.8
答案
1. 4.9 2.1 90 36
1.2 0 0.96 56
5.4 6.4 100 16.8
1.8 8.8 31.5 52
3.2 16 0.54 186
3.6 15.3 1.12 30
4.8 11 2.7 2.4
1.08 65 3.04 1.8
1.2 0 0.96 56
5.4 6.4 100 16.8
1.8 8.8 31.5 52
3.2 16 0.54 186
3.6 15.3 1.12 30
4.8 11 2.7 2.4
1.08 65 3.04 1.8
2. 用竖式计算。
3.62×15=
35×0.85=
2.7×140=
0.032×28=
0.34×260=
10.9×21=
竖式略
3.62×15=
54.3
35×0.85=
29.75
2.7×140=
378
0.032×28=
0.896
0.34×260=
88.4
10.9×21=
228.9
竖式略
答案
2. 54.3 29.75 378
0.896 88.4 228.9
竖式略
0.896 88.4 228.9
竖式略
把下面的竖式补充完整,并给积点上小数点。
答案
