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Anonymous No. 16180500

One can deduce the entire decimal numeral system and basic mathematical operations on it within several minutes from pic related. So why the fuck does it take a year or more for children to master this shit? Is formal education this poor?

Anonymous No. 16180517

>no subtraction

Anonymous No. 16180553

>>16180500
what the fuck are you talking about

Anonymous No. 16181341

>>16180517
twos complement (not shown)

Anonymous No. 16181350

>>16180500
90% of children are genuinely retarded creatures