I was having difficulty finding differentiated activities that went with making 10. In this set of worksheets I have 3 different levels of activities.
Worksheet # 1: Students make 10 with ten-frames.
Worksheet #2: Students use what they know about making 10 to make 100.
Worksheet #3: Students use what they know about adding 10s in order to begin to add 2 digit numbers. For example, they know 20+30=50 so they know that 22+30=52.