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神机妙算细又巧24×(14+18+16)413+5.375+523+258712×0.86+14%÷127815×14+815.

题目详情
神机妙算细又巧
24×(
1
4
+
1
8
+
1
6
4
1
3
+5.375+5
2
3
+2
5
8
7
12
×0.86+14%÷
12
7
8
15
×14+
8
15
▼优质解答
答案和解析
(1)24×(
1
4
+
1
8
+
1
6

=24×
1
4
+24×
1
8
+24×
1
6

=6+3+4
=13

(2)4
1
3
+5.375+5
2
3
+2
5
8

=(4
1
3
+5
2
3
)+(5.375+2.625)
=10+8
=18

(3)
7
12
×0.86+14%÷
12
7

=
7
12
×0.86+0.14×
7
12

=
7
12
×(0.86+0.14)
=
7
12


(4)
8
15
×14+
8
15

=
8
15
×(14+1)
=
8
15
×15
=8