43×99+430.3×(77.6-5.6)56×(37-38)57×35÷6723+58×2538×〔89÷(56-34)〕-数学

题目简介

43×99+430.3×(77.6-5.6)56×(37-38)57×35÷6723+58×2538×〔89÷(56-34)〕-数学

题目详情

43×99+43
0.3×(77.6-5.6)
56×(
3
7
-
3
8

5
7
×
3
5
÷
6
7

2
3
+
5
8
×
2
5

3
8
×〔
8
9
÷(
5
6
-
3
4
)〕
题型:解答题难度:中档来源:不详

答案

(1)43×99+43,
=(99+1)×43,
=100×43,
=4300;

(2)0.3×(77.6-5.6),
=0.3×72,
=21.6;

(3)56×(class="stub"3
7
-class="stub"3
8

=56×class="stub"3
7
-56×class="stub"3
8

=24-21,
=3;

(4)class="stub"5
7
×class="stub"3
5
÷class="stub"6
7

=class="stub"3
7
×class="stub"7
6

=class="stub"1
2


(5)class="stub"2
3
+class="stub"5
8
×class="stub"2
5

=class="stub"2
3
+class="stub"1
4

=class="stub"11
12


(6)class="stub"3
8
×[class="stub"8
9
÷(class="stub"5
6
-class="stub"3
4
)]
=class="stub"3
8
×[class="stub"8
9
×12],
=class="stub"3
8
×class="stub"8
9
×12,
=4.

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