1964×(143-12007)+43×(11964-12007)-2007×(11964+143)+3=______.-数学

题目简介

1964×(143-12007)+43×(11964-12007)-2007×(11964+143)+3=______.-数学

题目详情

1964×(
1
43
-
1
2007
)+43×(
1
1964
-
1
2007
)-2007×(
1
1964
+
1
43
)+3=______.
题型:填空题难度:中档来源:不详

答案

1964×(class="stub"1
43
-class="stub"1
2007
)+43×(class="stub"1
1964
-class="stub"1
2007
)-2007×(class="stub"1
1964
+class="stub"1
43
)+3
=class="stub"1964
43
-class="stub"1964
2007
+class="stub"43
1964
-class="stub"43
2007
-class="stub"2007
1964
-class="stub"2007
43
+3
=(class="stub"1964
43
-class="stub"2007
43
)-(class="stub"1964
2007
+class="stub"43
2007
)+(class="stub"43
1964
-class="stub"2007
1964
)+3
=-1-1-1+3
=-3+3
=0
故答案为:0.

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