脱式计算.2220-36×42÷27[(112+223)÷212-56]×445(25%+38)×(37÷37÷58)-数学

题目简介

脱式计算.2220-36×42÷27[(112+223)÷212-56]×445(25%+38)×(37÷37÷58)-数学

题目详情

脱式计算.
2220-36×42÷27[(1
1
2
+2
2
3
)÷2
1
2
-
5
6
]×4
4
5
(25%+
3
8
)×(
3
7
÷
3
7
÷
5
8
题型:解答题难度:中档来源:西藏

答案

(1)2220-36×42÷27,
=2220-1512÷27,
=2220-56,
=2164;

(2)[(1class="stub"1
2
+2class="stub"2
3
)÷2class="stub"1
2
-class="stub"5
6
]×4class="stub"4
5

=[class="stub"25
6
÷2class="stub"1
2
-class="stub"5
6
]×4class="stub"4
5

=[class="stub"5
3
-class="stub"5
6
]×4class="stub"4
5

=class="stub"5
6
×class="stub"24
5

=4;

(3)(25%+class="stub"3
8
)×(class="stub"3
7
÷class="stub"3
7
÷class="stub"5
8
),
=class="stub"5
8
×(1÷class="stub"5
8
),
=class="stub"5
8
×class="stub"8
5

=1.

更多内容推荐