题目内容
最小的合数的倒数是
,0.25的倒数是
×
=
×
=
×
=
×0.3=1.
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4
4
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分析:根据倒数的意义:乘积是1的两个数互为倒数.求一个数的倒数,就是用1除以这个数,最小的合数4,4的倒数是
,0.25的倒数是4;
的倒数是
;
的倒数是
;
的倒数是
;0.3的倒数是
;由此解答.
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解答:解:最小的合数4,4的倒数是
,0.25的倒数是4;
×(
)=
×(
)=
×(
)=(
)×0.3=1;
故答案为:
;4;
;
;
;
.
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故答案为:
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点评:此题考查的目的是使学生理解倒数的意义,掌握求一个数的倒数的方法.
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