问题 解答题
直接写出得数(近似值符号的是估算题)
1322-199=______;
1.87+5.3=______;2-2÷5=______;
5
7
+
3
8
)×56=______;
603×39≈______;4950÷51≈______;
10÷
1
10
×10=______;
______:
1
3
=
1
3
答案

1322-199=1123;

1.87+5.3=7.17;

2-2÷5=1.6;

5
7
+
3
8
)×56=61;

603×39≈24000;

4950÷51≈100;

10÷

1
10
×10=1000;

1
9
):
1
3
=
1
3

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