1. 直接写出得数。(16☆)
3×0.4=
0.16÷0.2=
3.3÷0.3=
2.28÷0.6=
2.61÷0.9=
0.24×6=
56.3÷100=
2.76÷0.6=
3.4×5=
12.8÷100=
2.12÷0.4=
0.001×100=
3.2×0.3=
1.96÷0.7=
0.165×100=
3.7×0.5=
0.15÷0.3=
0.67×2=
1.4×0.7=
0.4×0.05=
2.37÷0.3=
3.5×0.01=
1.7×0.5=
2.34÷0.3=
0.16÷100=
5.28÷0.6=
0.8×0.07=
0.5÷100=
30.5÷5=
4.05÷0.5=
29.6÷4=
69.3÷9=
3×0.4=
0.16÷0.2=
3.3÷0.3=
2.28÷0.6=
2.61÷0.9=
0.24×6=
56.3÷100=
2.76÷0.6=
3.4×5=
12.8÷100=
2.12÷0.4=
0.001×100=
3.2×0.3=
1.96÷0.7=
0.165×100=
3.7×0.5=
0.15÷0.3=
0.67×2=
1.4×0.7=
0.4×0.05=
2.37÷0.3=
3.5×0.01=
1.7×0.5=
2.34÷0.3=
0.16÷100=
5.28÷0.6=
0.8×0.07=
0.5÷100=
30.5÷5=
4.05÷0.5=
29.6÷4=
69.3÷9=
答案
1. 1.2 17 0.5 0.00016
0.8 0.128 1.34 8.8
11 5.3 0.98 0.056
3.8 0.1 0.02 0.005
2.9 0.96 7.9 6.1
1.44 2.8 0.035 8.1
0.563 16.5 0.85 7.4
4.6 1.85 7.8 7.7
0.8 0.128 1.34 8.8
11 5.3 0.98 0.056
3.8 0.1 0.02 0.005
2.9 0.96 7.9 6.1
1.44 2.8 0.035 8.1
0.563 16.5 0.85 7.4
4.6 1.85 7.8 7.7
2. 根据$273×42=11466$,填一填。(22☆)
$2.73×4.2=(\quad)$
$27.3×42=(\quad)$
$2.73×0.42=(\quad)$
$273×(\quad)=1146.6$
$11.466÷42=(\quad)$
$1.1466÷2.73=(\quad)$
$114.66÷0.42=(\quad)$
$(\quad)×(\quad)=1.1466$
$(\quad)×(\quad)=0.11466$
$2.73×4.2=(\quad)$
$27.3×42=(\quad)$
$2.73×0.42=(\quad)$
$273×(\quad)=1146.6$
$11.466÷42=(\quad)$
$1.1466÷2.73=(\quad)$
$114.66÷0.42=(\quad)$
$(\quad)×(\quad)=1.1466$
$(\quad)×(\quad)=0.11466$
答案
2. 11.466 1146.6 1.1466
4.2 0.273 0.42
273 2.73 0.42
0.273 0.42(最后两个算式答案不唯一)
4.2 0.273 0.42
273 2.73 0.42
0.273 0.42(最后两个算式答案不唯一)
3. 在 ○ 里填上“>”“<”或“=”。(18☆)
0.27 ○ 0.27×1.2
9.8÷2.9 ○ 9.8
5.23 ○ 5.23×0.8
5.6÷0.8 ○ 5.6
0.39÷0.8 ○ 0.39
15.5×10 ○ 15.5÷0.1
7.2÷0.01 ○ 0.072
326÷10 ○ 3.26×10
2.08÷1.02 ○ 2.08×1.02
0.27 ○ 0.27×1.2
9.8÷2.9 ○ 9.8
5.23 ○ 5.23×0.8
5.6÷0.8 ○ 5.6
0.39÷0.8 ○ 0.39
15.5×10 ○ 15.5÷0.1
7.2÷0.01 ○ 0.072
326÷10 ○ 3.26×10
2.08÷1.02 ○ 2.08×1.02
答案
3. < < > > > = > = <
4. 用竖式计算。(12☆)
3.5×0.48
2.4×0.35
7.25÷2.9
12.6÷8.4
27.36÷12
0.208×2.5
3.5×0.48
2.4×0.35
7.25÷2.9
12.6÷8.4
27.36÷12
0.208×2.5
答案
4. 1.68 0.84 2.5 1.5 2.28 0.52
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