题目内容
2与3的倒数的和的4倍除以1与
的差,所得的数是多少?
解:(
+
)×4÷(1-
),
=
×4÷
,
=
×4×6,
=20;
答:所得的数是20.
分析:2与3的倒数的和是
+
,它的4倍是(
+
)×4,1与
的差是1-
,由此列式为(
+
)×4÷(1-
),计算即可.
点评:此题考查了倒数以及倍数、差等概念,注意理解题意,才能正确列式.
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=
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=
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=20;
答:所得的数是20.
分析:2与3的倒数的和是
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点评:此题考查了倒数以及倍数、差等概念,注意理解题意,才能正确列式.

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