I've always found that little learners grasp the concept of rounding quite readily - but then forget it just as quickly. When this happens, as teachers we need to plan to revisit the key concepts consistently over the remainder of the year. The most fun and engaging way I have found to do this is with fast prep, easy set-up math activities. Write-n-wipe cards are perfect. Sit a bin of them down on the floor and let your learners use them as a fast-finisher to reengage with past content. Our latest printable math center activity can be used in this way after you have introduced it in rotations or workshops. It will help students learn to round 3 digit numbers to the nearest hundred. On each card they will record, with a dry erase marker, the nearest hundred - using the balance visual prompt to assist them if necessary. We've included: detailed instructions 72 game cards a worksheet to record a cover page to help you organize your resources for future reference Here you can see how Sam used the ruler-balance visual to assist in rounding 479 to 500. Find these cards over in our TpT store HERE