Practice problem
Write 6,4786{,}4786,478 in expanded notation.
60,000+4,000+700+8060{,}000+4{,}000+700+8060,000+4,000+700+80
6,000+400+70+86{,}000+400+70+86,000+400+70+8
6+4+7+86+4+7+86+4+7+8
600+40+7+8600+40+7+8600+40+7+8
Type a concept, like “slope” or “photosynthesis”.
