问题 填空题
1
128
+2
1
64
+4
1
32
+8
1
16
+16
1
8
+32
1
4
+64
1
2
=______.
答案

1
128
+2
1
64
+4
1
32
+8
1
16
+16
1
8
+32
1
4
+64
1
2

=(

1
128
+
1
64
+
1
32
+
1
16
+
1
8
+
1
4
+
1
2
)+(2+4+8+16+32+64),

=(

1
2
+
1
4
+
1
8
+
1
16
+
1
32
+
1
64
+
1
128
)+126,

=(1-

1
2
+
1
2
-
1
4
+
1
4
-
1
8
+
1
8
-
1
16
+
1
16
-
1
32
+
1
32
-
1
64
+
1
64
-
1
128
)+126,

=(1-

1
128
)+126,

=

127
128
+126,

=126

127
128

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