(191919989898+190190980980+1900190098009800)÷1998×98981919=______.-数学

题目简介

(191919989898+190190980980+1900190098009800)÷1998×98981919=______.-数学

题目详情

(
191919
989898
+
190190
980980
+
19001900
98009800
19
98
×
9898
1919
=______.
题型:填空题难度:中档来源:不详

答案

(class="stub"191919
989898
+class="stub"190190
980980
+class="stub"19001900
98009800
)÷class="stub"19
98
×class="stub"9898
1919

=(class="stub"19×10101
98×10101
+class="stub"190×1001
980×1001
+class="stub"1900×10001
9800×10001
)÷class="stub"19
98
×class="stub"98×101
19×101

=(class="stub"19
98
+class="stub"19
98
+class="stub"19
98
)×class="stub"98
19
×class="stub"98
19

=3×class="stub"19
98
×class="stub"98
19
×class="stub"98
19

=class="stub"294
19

=15class="stub"9
19

故答案为:15class="stub"9
19

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