脱式计算.(能简算的要简算)(1)5.4×(86.5-16.25÷0.5)(2)3-32×1021-27(3)95.6×18+4.4×18(4)1516+(716-14)÷12.-数学

题目简介

脱式计算.(能简算的要简算)(1)5.4×(86.5-16.25÷0.5)(2)3-32×1021-27(3)95.6×18+4.4×18(4)1516+(716-14)÷12.-数学

题目详情

脱式计算.(能简算的要简算)
(1)5.4×(86.5-16.25÷0.5)

(2)3-
3
2
×
10
21
-
2
7
(3)95.6×18+4.4×18(4)
15
16
+(
7
16
-
1
4
)÷
1
2
题型:解答题难度:中档来源:不详

答案

(1)5.4×(86.5-16.25÷0.5),
=5.4×(86.5-32.5),
=5.4×54,
=291.6;

(2)3-class="stub"3
2
×class="stub"10
21
-class="stub"2
7

=3-class="stub"5
7
-class="stub"2
7

=3-(class="stub"5
7
+class="stub"2
7
),
=3-1,
=2;

(3)95.6×18+4.4×18,
=(95.6+4.4)×18,
=100×18,
=1800;

(4)class="stub"15
16
+(class="stub"7
16
-class="stub"1
4
)÷class="stub"1
2

=class="stub"15
16
+class="stub"3
16
÷class="stub"1
2

=class="stub"15
16
+class="stub"6
16

=class="stub"21
16

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