My students love these number puzzles. They are a great way to practice different strategies for adding and subtracting two-digit and three-digit numbers. They help students play with decomposing numbers to build addition and subtraction math strategies

Engage students with a variety of Fraction Number Puzzles that provide practice with equivalent fractions, comparing fractions, and placing fractions on a number line. These are great for math stations or math centers.

I would print the cards representing units in a particular period the same color. More Place Value Ideas - FREE printable - Example on extending learning beyond an ipad game with the use of FREE printable resource

Number Puzzles for Third Grade engage students in using a variety of models, strategies and equations when solving problems.

This is a set of 12 touch point coin counting mats to provide students practice with learning to count coins. Each mat offers 5 coin counting tasks. by Traci Bender - The Bender Bunch

How to teach Place Value in Math with this easy game. Students use a fly swatter to "whack" the number in the correct place value as called out to the student.