Anytime we are working with, or thinking about numbers, it is important to get the place value right. When students make calculation errors in their adding or subtracting, it is often a problem of not correctly understanding place value.
GAME CARD: PLACE VALUE
In this game (shown above) students had to roll 10-sided dice. Each roll represented a digit that they had to place in one of the place value columns. Strategy was important however, because each student had to try and make a number that was larger, or smaller than his opponents.