[Free Registration/Login may be required to access all resource tools.] The video shows a model of how to group using tens and ones, subtract, and then count what is left using the grouping. The video is followed by a series of practice...

Practice grouping objects by tens. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Inca temples are made up of lots of blocks! Visit Cava and help her count the blocks and arrange them properly. You will practice writing 2-digit numbers, putting a set of 2-digit numbers in order, and counting forwards by tens.

This lesson is about counting by tens from AAAmath.com. There are separate sections for learning, practice, playing a game, and exploring more about skip counting.