lesson
Equal Groups With Ten in Each Group
Create and count equal groups that each contain ten objects.

Create and count equal groups that each contain ten objects.
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8 lessons
Create, count, and compare equal groups of specific sizes (2, 5, 10) and solve repeated addition problems with those group sizes.
select tools, including real objects, manipulatives, paper and pencil, and technology as appropriate, and techniques, including mental math, estimation, and number sense as appropriate, to solve problems;
analyze mathematical relationships to connect and communicate mathematical ideas; and