(15+59)×3537×8+37×856×11+5642×(16+17)24×(56-712)59×23×910.-数学

题目简介

(15+59)×3537×8+37×856×11+5642×(16+17)24×(56-712)59×23×910.-数学

题目详情

(15+
5
9
3
5
3
7
×8+
3
7
×8
5
6
×11+
5
6
42×(
1
6
+
1
7
)
24×(
5
6
-
7
12
)
5
9
×
2
3
×
9
10
题型:解答题难度:中档来源:不详

答案

(1)(15+class="stub"5
9
)×class="stub"3
5

=15×class="stub"3
5
+class="stub"5
9
×class="stub"3
5

=9+class="stub"1
3

=9class="stub"1
3


(2)class="stub"3
7
×
8+class="stub"3
7
×8
=class="stub"3
7
×
(7+1)×2
=(class="stub"3
7
×
7+class="stub"3
7
×1)×2
=3×2+class="stub"3
7
×
2
=6+class="stub"6
7

=6class="stub"6
7


(3)class="stub"5
6
×11+class="stub"5
6

=class="stub"5
6
×(11+1)
=class="stub"5
6
×
12
=10;

(4)42×(class="stub"1
6
+class="stub"1
7

=42×class="stub"1
6
+class="stub"1
7
×42
=7+6
=13;

(5)24×(class="stub"5
6
-class="stub"7
12

=24×class="stub"5
6
-class="stub"7
12
×24
=20-14
=6;

(6)class="stub"5
9
×class="stub"2
3
×class="stub"9
10

=class="stub"5
9
×class="stub"9
10
×class="stub"2
3

=class="stub"1
2
×class="stub"2
3

=class="stub"1
3

更多内容推荐