Play N Learn Smart Mathematics Wrap Up Subtraction Teaching Tool

SGD 19.90

Start the string with the 1st number on the left, read the large number in the center, find the correct answer on the right hand side & bring the string to the answer. (example 3 -1). Then draw the string around the back to the next number on the left. Repeat this procedure until the whole exercise is completed. It has a self-correcting mechanism with answers at the back too. The next challenge would be to time yourself.

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