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 St. Patrick's Day place values activity has 2nd-3rd grade students match three-digit numbers to expanded form cards. Answer key included, so checking is quick and easy.

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.

This popcorn mental math activity lets 2nd and 3rd grade students add and subtract 10 and 100 in their heads with a fun partner card game, recording sheet, and practice page. Answer key included.

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.