Practice counting objects that are in a column. Sew 5 or 6 buttons on a jacket. Then count the buttons and click on the number to tell how many
A. Combine and split groups of 6 identical objects and determine totals
B. Split a group of 6 identical objects into two groups in different ways
C. Combine and split groups of 7 identical objects and determine totals
D. Split a group of 7 identical objects into two groups in different ways
E. Distribute and count 7 identical objects aligned in a circular arrangement
F. Distribute and count 6 identical objects aligned in two rows