(1)10÷59+16×4(2)16×23÷(45-815)(3)79÷115+29×511(4)(12+112-712)÷17.-数学

题目简介

(1)10÷59+16×4(2)16×23÷(45-815)(3)79÷115+29×511(4)(12+112-712)÷17.-数学

题目详情

(1)10÷
5
9
+
1
6
×4
(2)
1
6
×
2
3
÷(
4
5
-
8
15

(3)
7
9
÷
11
5
+
2
9
×
5
11

(4)(
1
2
+
1
12
-
7
12
)÷
1
7
题型:解答题难度:中档来源:不详

答案


(1)10÷class="stub"5
9
+class="stub"1
6
×4,
=18+class="stub"2
3

=18class="stub"2
3


(2)class="stub"1
6
×class="stub"2
3
÷(class="stub"4
5
-class="stub"8
15
),
=class="stub"1
6
×class="stub"2
3
÷class="stub"4
15

=class="stub"1
9
÷class="stub"4
15

=class="stub"5
12


(3)class="stub"7
9
÷class="stub"11
5
+class="stub"2
9
×class="stub"5
11

=class="stub"7
9
×class="stub"5
11
+class="stub"2
9
×class="stub"5
11

=(class="stub"7
9
+class="stub"2
9
)×class="stub"5
11

=class="stub"5
11


(4)(class="stub"1
2
+class="stub"1
12
-class="stub"7
12
)÷class="stub"1
7

=(class="stub"7
12
-class="stub"7
12
)÷class="stub"1
7

=0÷class="stub"1
7

=0.

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