841819×10.375+105119×38.-数学

题目简介

841819×10.375+105119×38.-数学

题目详情

84
18
19
×10.375+105
1
19
×
3
8
题型:解答题难度:中档来源:不详

答案

84class="stub"18
19
×10.375+105class="stub"1
19
×class="stub"3
8

=84class="stub"18
19
×(10+class="stub"3
8
)+105class="stub"1
19
×class="stub"3
8

=84class="stub"18
19
×10+84class="stub"18
19
×class="stub"3
8
+105class="stub"1
19
×class="stub"3
8

=84class="stub"18
19
×10+(84class="stub"18
19
+105class="stub"1
19
)×class="stub"3
8

=84class="stub"18
19
×10+190×class="stub"3
8

=(85-class="stub"1
19
)×10+class="stub"285
4

=85×10-class="stub"1
19
×10+71class="stub"1
4

=850-class="stub"10
19
+71+class="stub"1
4

=(850+71)-(class="stub"10
19
-class="stub"1
4
),
=921-class="stub"21
76

=920class="stub"55
76

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