《2025年天天练口算五年级数学上册人教版》

2.3×0.5=1.15
1.8×0.3=0.54
4.2×0.4=1.68
0.3×0.7=0.21
0.87×0.1=0.087
0.2×1.9=0.38
0.8×0.8=0.64
3.2×0.4=1.28
6.1×0.5=3.05
1.8×0.4=0.72
20.1×0.7=14.07
1.3×0.6=0.78
3.4×0.2=0.68
2.7×0.3=0.81
2.6×0.3=0.78
0.12×0.7=0.084
2.9×0.3=0.87
300×0.7=210
0.9×0.9=0.81
3.2×0.5=1.6
2.8×0.4=1.12
2.5×0.4=1
0.8×0.7=0.56
100×1.75=175
3.5×0.4=1.4
0.5×0.15=0.075
700×0.001=0.7
1.2×0.7=0.84
0.4×0.75=0.3
0.387×1=0.387

答案： 2.3×0.5=1.15
1.8×0.3=0.54
4.2×0.4=1.68
0.3×0.7=0.21
0.87×0.1=0.087
0.2×1.9=0.38
0.8×0.8=0.64
3.2×0.4=1.28
6.1×0.5=3.05
1.8×0.4=0.72
20.1×0.7=14.07
1.3×0.6=0.78
3.4×0.2=0.68
2.7×0.3=0.81
2.6×0.3=0.78
0.12×0.7=0.084
2.9×0.3=0.87
300×0.7=210
0.9×0.9=0.81
3.2×0.5=1.6
2.8×0.4=1.12
2.5×0.4=1
0.8×0.7=0.56
100×1.75=175
3.5×0.4=1.4
0.5×0.15=0.075
700×0.001=0.7
1.2×0.7=0.84
0.4×0.75=0.3
0.387×1=0.387

4.68 ×(10)→46.8 ÷(100)→0.468 ×1000→(468)
10 ÷100→(0.1)×1000→(100)÷10→(10)

答案：
$4.68×(10)→46.8÷(100)→0.468×1000→(468)$；
$10÷100→(0.1)×1000→(100)÷10→(10)$；
$(×10)→$，$(×10)$；$(×100)→$，$(×10)$