问题 解答题
直接写出得数.
0.42×0.5=
0.51÷1.7=5.2÷0.13=99×1.01=
13.5-2.8-7.2=32.8+19=1.06×0.4=
2
5
+
3
5
=

1-
7
8
=
25×0.32×125=
答案

0.42×0.5=0.210.51÷1.7=0.35.2÷0.13=4099×1.01=99.99
13.5-2.8-7.2=3.532.8+19=51.81.06×0.4=0.424
2
5
+
3
5
=1
1-
7
8
=
1
8
25×0.32×125=1000

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