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415×5+3247÷4+0.25×124.
题目详情
4
×5+32
÷4+0.25×124.
1 |
5 |
4 |
7 |
▼优质解答
答案和解析
4
×5+32
÷4+0.25×124,
=
×5+(32+
)×
+
×124,
=21+32×
+
×
+31,
=21+8+
+31,
=60
.
1 |
5 |
4 |
7 |
=
21 |
5 |
4 |
7 |
1 |
4 |
1 |
4 |
=21+32×
1 |
4 |
4 |
7 |
1 |
4 |
=21+8+
1 |
7 |
=60
1 |
7 |
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