"10 Frame Fill" provides children practice with recognizing additive "10 Families" (e.g., 1 and 9, 2 and 8, etc.). Set the 10 Frame to fill in sequence or randomly. Use contrasting color chips to fill the 10 frame as you determine the answer. Select to show a corresponding number sentence.

• The iPad version includes an option to show select number sentences... one at a time or all types that were selected.

• The iPhone/iPod version to show one randomly select number sentence at a time.

Designed as part of the NumberSense Project at Augustana College in Rock Island, IL.