直接写出得数:16.15÷1.7+0.85÷1.7=______199+99×99=______12+13-14+15-16=______613+458+5.375+323=______10.1×99

题目简介

直接写出得数:16.15÷1.7+0.85÷1.7=______199+99×99=______12+13-14+15-16=______613+458+5.375+323=______10.1×99

题目详情

直接写出得数:
16.15÷1.7+0.85÷1.7=______
199+99×99=______
1
2
+
1
3
-
1
4
+
1
5
-
1
6
=______
6
1
3
+4
5
8
+5.375+3
2
3
=______
10.1×99-9.9=______
3×32+
9
10
+
9
100
+
9
1000
=______.
题型:解答题难度:中档来源:不详

答案

(1)16.15÷1.7+0.85÷1.7,
=(16.15+0.85)÷1.7,
=17÷1.7,
=10;

(2)199+99×99,
=199+99×(100-1),
=199+99×100-99,
=199+9900-99,
=9900+(199-99),
=9900+100,
=10000;

(3)class="stub"1
2
+class="stub"1
3
-class="stub"1
4
+class="stub"1
5
-class="stub"1
6

=(class="stub"1
2
-class="stub"1
4
)+(class="stub"1
3
-class="stub"1
6
)+class="stub"1
5

=class="stub"1
4
+class="stub"1
6
+class="stub"1
5

=class="stub"5
12
+class="stub"1
5

=class="stub"37
60


(4)6class="stub"1
3
+4class="stub"5
8
+5.375+3class="stub"2
3

=(6class="stub"1
3
+3class="stub"2
3
)+(4class="stub"5
8
+5class="stub"3
8
),
=10+10,
=20;

(5)10.1×99-9.9,
=101×9.9-9.9,
=(101-1)×9.9,
=100×9.9,
=990;

(6)3×32+class="stub"9
10
+class="stub"9
100
+class="stub"9
1000

=3×9+class="stub"9
10
+class="stub"9
100
+class="stub"9
1000

=27+0.9+0.09+0.009,
=27.999.
故答案为:10,10000,class="stub"37
60
,20,990,27.999

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