脱式计算(1)1655-45×140÷18=(2)0.63+37%÷(223+149)=(3)49×[34-(716-14)]=-数学

题目简介

脱式计算(1)1655-45×140÷18=(2)0.63+37%÷(223+149)=(3)49×[34-(716-14)]=-数学

题目详情

脱式计算
(1)1655-45×140÷18=(2)0.63+37%÷(2
2
3
+1
4
9
)
=
(3)
4
9
×[
3
4
-(
7
16
-
1
4
)]
=
题型:解答题难度:中档来源:西藏

答案

(1)1655-45×140÷18,
=1655-6300÷18,
=1655-350,
=1305;

(2)0.63+37%÷(2class="stub"2
3
+1class="stub"4
9
)

=0.63+37%÷class="stub"37
9

=0.63+class="stub"9
100

=0.72;

(3)class="stub"4
9
×[class="stub"3
4
-(class="stub"7
16
-class="stub"1
4
)]

=class="stub"4
9
×[class="stub"3
4
-class="stub"3
16
],
=class="stub"4
9
×class="stub"9
16

=class="stub"1
4

更多内容推荐