6.EE.A1

3.NBT.3 – Fluently add and subtract within 1000 using strategies and algorithms based on place value.

4.NBT.5 – Multiply a whole number of up to four digits by a one digit whole number, and multiply two two digit numbers, using strategies based on place value and the properties of operations.

8.EE A.2 – Use square root and cute root symbols to represent solutions to equations.

counting up to 1000