This THTO place value worksheet has 3rd grade students count base-ten blocks and regroup thousands, hundreds, tens, and ones, with an answer key included to build strong number sense.

This Round to the Nearest Hundred Worksheet has 3rd Grade students name both neighboring hundreds before rounding, plus a word problem and an answer key so rounding finally makes sense.

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.

These ones, tens, hundreds, thousands, ten thousands place value flash cards for 2nd to 5th grade ask students to name the value of an underlined digit. Answer key included.

This tens place value worksheet helps 3rd grade students name what a tens digit is worth, with number items, write-your-own challenges, word problems and an answer key.

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.

Practice finding the hundreds digit with this place value hundreds worksheet for 3rd grade. Students circle the digit and write its value, and an answer key is included for quick checking.

A CMAS 3rd grade math practice test workbook for teachers, with a pretest, skill practice for all 36 standards, mixed review and 2 full-length practice tests. Answer key included, so test prep is ready to go.

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.

This four digit place value conversions worksheet has 3rd grade students write numbers from place value words in standard form, regroup, and explain a mistake. An answer key is included for easy checking.

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