能简算的要简算8-718+15-1118[2-(23-12)]÷1112(115+217)×15×1761111÷12.-数学

题目简介

能简算的要简算8-718+15-1118[2-(23-12)]÷1112(115+217)×15×1761111÷12.-数学

题目详情

能简算的要简算
8-
7
18
+
1
5
-
11
18

[2-(
2
3
-
1
2
)]÷
11
12

1
15
+
2
17
)×15×17
61
1
11
÷12.
题型:解答题难度:中档来源:不详

答案

(1)8-class="stub"7
18
+class="stub"1
5
-class="stub"11
18

=(8+class="stub"1
5
)-(class="stub"7
18
+class="stub"11
18

=8class="stub"1
5
-1
=7class="stub"1
5


(2)[2-(class="stub"2
3
-class="stub"1
2
)]÷class="stub"11
12

=[2-class="stub"1
6
class="stub"11
12

=class="stub"11
6
×class="stub"12
11

=2;

(3)(class="stub"1
15
+class="stub"2
17
)×15×17
=class="stub"1
15
×15×17+class="stub"2
17
×17×15
=17+30
=47;

(4)61class="stub"1
11
÷12
=(60+class="stub"12
11
)×class="stub"1
12

=60×class="stub"1
12
+class="stub"12
11
×class="stub"1
12

=5+class="stub"1
11

=5class="stub"1
11

更多内容推荐