Drag and drop the red and yellow counters into the tens frame to show 7 + __ = 13.
First, fill in the tens frame to make a ten, then drag and drop the other counters to underneath the tens frame.
*Use the red counters for 7 and use the yellow counters for the number that would go on the line.
*To drag and drop the counters, touch the counters with your finger and drag them up into each numbered box in the tens frame.