计算:12+14+18+116+132+164+1128+1256+1512+11024=______.
问题描述:
计算:
+1 2
+1 4
+1 8
+1 16
+1 32
+1 64
+1 128
+1 256
+1 512
=______. 1 1024
答
原式=
+512 1024
+256 1024
+128 1024
+64 1024
+32 1024
+16 1024
+8 1024
+4 1024
+2 1024
1 1024
=
,1023 1024
故答案为:
.1023 1024
答案解析:根据异分母分数相加,先通分,可得同分母分数,再根据有理数的加法,可得答案.
考试点:有理数的加法.
知识点:本题考查了有理数的加法,先通分,再加减.