计算(1)4.25×0.75+75%×4.75+34(2)1÷13-13÷1(3)2006×97-96×2007.-数学

题目简介

计算(1)4.25×0.75+75%×4.75+34(2)1÷13-13÷1(3)2006×97-96×2007.-数学

题目详情

计算
(1)4.25×0.75+75%×4.75+
3
4
    
(2)1÷
1
3
-
1
3
÷1
(3)2006×97-96×2007.
题型:解答题难度:中档来源:不详

答案

解(1):4.25×0.75+75%×4.75+class="stub"3
4

=0.75×(4.25+4.75+1),
=0.75×10,
=7.5;

(2)1÷class="stub"1
3
-class="stub"1
3
÷1,
=3-class="stub"1
3

=2class="stub"2
3


(3)2006×97-96×2007,
=(2007-1)×97-96×2007,
=2007×97-97-96×2007,
=2007×(97-96)-97,
=2007-97,
=1910.

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