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Problem-solving approach to mathematics 2013

1 5 % 0. %. 3. 17,64% 10-. 11 years. 4. 20 % 2. 25. %. 2. 1 6,. 66%. 35-. 40 years. 1 2 60 % 1. 33. %. 1 1 64,70% 12-. 13 years. 1 1 5 5 % 3. 37.5. %. 8. 66,66.



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