Mathematics · Mathematics Pedagogy
A primary class mathematics teacher gave his students the following problem to solve: 'How many classes of 28 pupils would be needed for a school of 616 pupils?' One of the students solved the problem in the following way: 1 Class = 28 Pupils 10 classes → 280 10 classes → 280 (Total = 560) 2 classes → 56 (Total = 616) Total: 10 + 10 + 2 = 22 Classes Which of the following statements is most appropriate regarding the algorithm used by the student?
- 1The student has used both the distributive and associative laws of division to solve the problem
- 2The student has used an incorrect algorithm to solve the problem
- 3The student has used the associative law of division across addition to solve the problem
- 4The student has used the distributive law of division across addition to solve the problem✓
Correct answer
The student has used the distributive law of division across addition to solve the problem
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