2.NBT.3
Give your child a piece of paper and a pencil.
Ask them to write the number 627 using numerals (627), number names (six hundred twenty seven), and expanded form (600+20+7).
Do the same with the number 408.
Ask them to write the number 627 using numerals (627), number names (six hundred twenty seven), and expanded form (600+20+7).
Do the same with the number 408.