问题 解答题
直接写出得数.(估算)
49×301≈

12×25%=

1
2
+
1
3
=

4.78-2.11-0.89=
5.4÷0.27=0÷1.35×4=28÷
4
7
=
1
8
÷9×
1
8
=
答案

49×301≈15000,

12×25%=3,

1
2
+
1
3
=
5
6

4.78-2.11-0.89=1.78,

5.4÷0.27=20,0÷1.35×4=0,28÷
4
7
=49,
1
8
÷9×
1
8
=
1
64
故答案为:15000,3,
5
6
,1.78,20,0,49,
1
64

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