Still Count By Column Rules - Tumblr Posts

your-spider-bro

7 months ago

your-spider-bro - Spiders. That's all

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7+8=15 so we have not a 48 but 55 55+20=75 But if it's big numbers (more than 2 digits); sometimes I “draw” columns in head and solve them and sometimes I don't visualise them but still count by column rules

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