问题 解答题
直接写出结果(近似值符号的只要求估算).
1-0.009=
0.25×101=3÷0.03=6π≈
1
4
×
2
3
=
4
15
÷
8
35
=
2
3
+
1
5
=
31×199≈
答案

1-0.009=0.991,0.25×101=25.25,3÷0.03=100,6π≈18,
1
4
×
2
3
=
1
6
4
15
÷
8
35
=1
1
6
2
3
+
1
5
=
13
15
31×199≈6000.
故答案为:0.991,25.25,100,18,
1
6
1
1
6
13
15
,6000.

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