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Addition Number Locks

Code: ED515
  • £68.95 (ex. VAT)

Unlock addition facts to 20 with this set of innovative self-correcting locks and keys.

  • Choose a key and solve one of the 2 equations printed on it (front and back) then find the lock with the answer.
  • If it is correct the key will turn and the lock will open.

Each set includes 20 locks and 39 keys.

Size: locks 8cm.

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