正确计算巧又细.(1)56×59+59×16(2)3-613÷926-23(3)(0.75-316)×(29+13)-数学

题目简介

正确计算巧又细.(1)56×59+59×16(2)3-613÷926-23(3)(0.75-316)×(29+13)-数学

题目详情

正确计算巧又细.
(1)
5
6
×
5
9
+
5
9
×
1
6

(2)3-
6
13
÷
9
26
-
2
3

(3)(0.75-
3
16
)×(
2
9
+
1
3
题型:解答题难度:中档来源:不详

答案

解(1)class="stub"5
6
×class="stub"5
9
+class="stub"5
9
×class="stub"1
6

=(class="stub"5
6
+class="stub"1
6
)×class="stub"5
9

=1×class="stub"5
9

=class="stub"5
9


(2)3-class="stub"6
13
÷class="stub"9
26
-class="stub"2
3

=3-class="stub"4
3
-class="stub"2
3

=3-(class="stub"4
3
+class="stub"2
3
),
=3-2,
=1;

(3)(0.75-class="stub"3
16
)×(class="stub"2
9
+class="stub"1
3
),
=class="stub"9
16
×class="stub"5
9

=class="stub"5
16

更多内容推荐