用你喜欢的方法计算下面各题16×34÷494×97+4÷754-(25+35÷12)(1-0.6)÷(23÷49)-数学

题目简介

用你喜欢的方法计算下面各题16×34÷494×97+4÷754-(25+35÷12)(1-0.6)÷(23÷49)-数学

题目详情

用你喜欢的方法计算下面各题
16×
3
4
÷
4
9
9
7
+4÷
7
5
4-(
2
5
+
3
5
÷
1
2
(1-0.6)÷(
2
3
÷
4
9
题型:解答题难度:中档来源:不详

答案

(1)16×class="stub"3
4
÷class="stub"4
9

=12÷class="stub"4
9

=27;

(2)4×class="stub"9
7
+4÷class="stub"7
5

=4×class="stub"9
7
+4×class="stub"5
7

=4×(class="stub"9
7
+class="stub"5
7
),
=4×2,
=8;

(3)4-(class="stub"2
5
+class="stub"3
5
÷class="stub"1
2
),
=4-(class="stub"2
5
+class="stub"6
5
),
=4-class="stub"8
5

=class="stub"12
5


(4)(1-0.6)÷(class="stub"2
3
÷class="stub"4
9
),
=0.4÷class="stub"3
2

=class="stub"4
15

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