◆+△=? --- 2項の足し算
- No.113 (例:324+553、529+635、49+316)
- No.114 (例:3214+4353、5292+7635、429+3016)
◆+△+×=? --- 3項の足し算
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Last-modified: 2014-08-24 (日) 01:07