问题 填空题
3
3
4
=
()
4
=
30
()
=2
()
4
=______(填小数).
答案

①3×4+3=15,

②2×4=8,

③4+3=7,

④3÷4+3=3.75,

所以3

3
4
=
15
4
=
30
8
=2
7
4
=3.75;

故答案为:15,8,7,3.75.

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