2
3
×
3
2
3
2
=
3
4
×
4
3
4
3
=
1
3
÷
1
3
1
3
=1×
1
1
=1.
分析:最后運(yùn)算的結(jié)果是1,根據(jù)一個(gè)數(shù)和它的倒數(shù)相乘的結(jié)果是1,以及被除數(shù)和除數(shù)相等時(shí),商是1求解.
解答:解:
2
3
的倒數(shù)是
3
2
,
3
4
的倒數(shù)是
4
3
,1的倒數(shù)是1;
1
3
÷
1
3
=1;那么:
2
3
×
3
2
=
3
4
×
4
3
=
1
3
÷
1
3
=1×1=1.
故答案為:
3
2
,
4
3
,
1
3
,1.
點(diǎn)評(píng):本題根據(jù)倒數(shù)的性質(zhì),以及一個(gè)非0的數(shù)除以它本身都得1進(jìn)行求解.
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