Subtraction flash cards teach subtraction with numbers to 10， to 20 and to 100. 3 flashcard sets， 162 cards. Ages 5+.
- Covers goemetric fractions， visual fractions and word problems
- Visual arrays are provided to help children see the mathematical relationships
- 50 double sided activity cards for teaching data handling
- Teaches fast， automatic recall
- A perfect activity for independent or guided learning
- Plastic
- Wipe clean
- Imported
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