计算,能简算的要简算.(1)46.7-15.03-4.97(2)709-4832÷16(3)(19+127)÷4+2723(4)23×[910+(716-14)].-数学

题目简介

计算,能简算的要简算.(1)46.7-15.03-4.97(2)709-4832÷16(3)(19+127)÷4+2723(4)23×[910+(716-14)].-数学

题目详情

计算,能简算的要简算.
(1)46.7-15.03-4.97                  
(2)709-4832÷16
(3)(
1
9
+
1
27
)÷4+
27
23
        
(4)
2
3
×[
9
10
+(
7
16
-
1
4
)].
题型:解答题难度:中档来源:不详

答案

(1)46.7-15.03-4.97
=46.7-(15.03+4.97),
=46.7-20,
=26.7;

(2)709-4832÷16
=709-4832÷(8×2),
=709-4832÷8÷2,
=709-604÷2,
=709-302,
=407;

(3)(class="stub"1
9
+class="stub"1
27
)÷4+class="stub"27
23
 
=class="stub"4
27
÷4+class="stub"27
23

=class="stub"1
27
+class="stub"27
23

=1class="stub"131
621


(4)class="stub"2
3
×[class="stub"9
10
+(class="stub"7
16
-class="stub"1
4
)]
=class="stub"2
3
×[class="stub"9
10
+class="stub"3
16
],
=class="stub"2
3
×class="stub"9
10
+class="stub"2
3
×class="stub"3
16

=class="stub"3
5
+class="stub"1
8

=class="stub"29
40

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