Ten More,Ten Less

Double Digit Amounts

Implementation Considerations

This slide deck uses base ten blocks to support student visual reasoning while building a conceptual understanding of the ten more and ten less from any double-digit amount. The slides are sequenced in a predictable pattern, but should not only be used in that manner. Each slide can be used to facilitate a Number Talk and can be presented separately.

Users should make a copy of the slide deck and modify as needed. All subitizing slides are animated, but editing a copy may disrupt that animation. Please see our video on “How to Animate in Google Slides” if you need support.

SETS

SET A - Ten More with Multiples of Ten

SET B - Twenty More with Double-Digit Numbers

SET C - Ten Less with Multiples of Ten

SET D - Ten Less with Double-Digit Numbers

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SET A

SET B - 20 More

SET C

SET D