(23)1998×(-1.5)1997=______.-数学

题目简介

(23)1998×(-1.5)1997=______.-数学

题目详情

2
3
1998×(-1.5)1997=______.
题型:填空题难度:中档来源:不详

答案

class="stub"2
3
)1998×(-1.5)1997,
=(class="stub"2
3
)1997×class="stub"2
3
×(-1.5)1997,
=(-class="stub"2
3
×1.5)1997×class="stub"2
3

=-class="stub"2
3

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