The Place Value Party Place Value Activity lets 1st to 3rd Grade students spin numbers, build them with base-ten cards and write expanded form. Answer key included.

This 3.NBT.1 Common Core Activity lets 3rd Grade students round numbers to the nearest 10 or 100 by sorting 24 cards into Round Up and Round Down, with an answer key included.

In this Blast Off With Numbers Base Ten Words Expanded Form Activity, students will read and write numbers to 1000 using base-ten numerals, number names, and expanded form.

The Let's Make a Number Hundreds Tens One Activity has 1st to 3rd grade students build and compare three-digit numbers with cards and a place value mat. Answer key included for quick checking.

This round it up or down ice cream activity has 3rd and 4th grade students match number scoops to cones by rounding to the nearest ten and hundred. Answer key included for quick checking.

In this Scooping Up Hundreds Rounding Activity, students use place value understanding to round whole numbers to the nearest 100.