CURS 4240U Lecture Notes - Lecture 6: Kindergarten
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Section 1 has 30 students, section 2 has 29, section 3 has 27 and section 4 has 23. > add -> 109 kids: each kid wants 3 chocolates. > 327 chocolates: each bag has 90 chocolates. > 3. 6: 3. 6 isn"t possible, so we need 4 bags. Place value: 27 = 20 + 7, 29 = 20 + 9. Estimate: 30 kids means 90 chocolates -> 1 bag. So if there are classes with less than 30 kids, 1 bag will be enough -> each class gets 1 bag -> 4 bags altogether. 15% of = . 00 : so for . 50, round to 50, 50 is half of 100, so find the "half" of 15, 7. 5. Give children problem solving questions that allow them to estimate. Rounding and estimation is different, and we use estimation every day of our lives.
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