Subtraction With Drawings

I found this gem of practicing subtraction with drawing pictures!  I want to show you this adorable book I read to the kids, Ten Little Fish, and it basically counts backwards starting with 10 fish.  Each page another fish swims away, which I used to show a subtraction math sentence on the board.

As we read through the story, I would have volunteers come up and write the number sentence on the board.  

After we read Ten Little Fish, I asked the student to draw their own number sentence.  They were to draw a group of fish, cross a couple out, and then write the number sentence.