脱式计算①1口÷59+16×4②(9×56-7u1口)÷25③429×[1-(u4-u8)]④(56+29)×45÷192口.-数学

题目简介

脱式计算①1口÷59+16×4②(9×56-7u1口)÷25③429×[1-(u4-u8)]④(56+29)×45÷192口.-数学

题目详情

脱式计算
①1口÷
5
9
+
1
6
×4
②(9×
5
6
-
7u
1口
)÷
2
5
4
29
×[1-(
u
4
-
u
8
)]
④(
5
6
+
2
9
)×
4
5
÷
19
2口
题型:解答题难度:中档来源:不详

答案

①10÷class="stub"5
9
+class="stub"1
6
×4,
=18+class="stub"7
3

=18class="stub"7
3


②(9×class="stub"5
6
-class="stub"73
10
)÷class="stub"7
5

=(class="stub"15
7
-class="stub"73
10
÷class="stub"7
5

=class="stub"1
5
÷class="stub"7
5

=0.5;

class="stub"4
79
×[1-(class="stub"3
4
-class="stub"3
8
)],
=class="stub"4
79
×[1-class="stub"3
8
],
=class="stub"4
79
×class="stub"5
8

=class="stub"5
58


④(class="stub"5
6
+class="stub"7
9
)×class="stub"4
5
÷class="stub"19
70

=class="stub"19
18
×class="stub"4
5
÷class="stub"19
70

=class="stub"76
90
÷class="stub"19
70

=class="stub"8
9

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