*Subtraction Facts 11-20*
This game addresses the skills of subtracting 11-20. To set it up, distribute the fish bowl cards around the room. Then, give each child some fact cards. Either have them use mental math to solve the problems as they search for the correct fish bowl, or have them write the answer on the card with a dry erase marker first. When the cards have all been sorted, check each one with the group. Discuss which cards have been placed correctly and why some numbers have more cards than others (the number 11 has the most facts, for example.) As a follow up, one cut and paste worksheets has been included.
See the Addition Facts to 10 here:
Addition Facts to 10
For addition facts 11-20, see the companion set at:
Addition Facts 11-20
See also Subtraction Facts to 10:
Subtraction Facts to 10