AC Lim's answer to Vera's Primary 4 Maths Singapore question.
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Hope this helps
Date Posted:
4 years ago
Second question ,how to get 20?Thank you!
1st you assume all Y.
2nd you replace 1Y to V, therefore you have 6Y and 1V, total stick 6x3=18 and 1V = 1x2=2 , Total = 20... and you should use 21-1=20 for this question. ... because 1Y = 3 and 1V = 2 the different = 1...
2nd you replace 1Y to V, therefore you have 6Y and 1V, total stick 6x3=18 and 1V = 1x2=2 , Total = 20... and you should use 21-1=20 for this question. ... because 1Y = 3 and 1V = 2 the different = 1...
Ok,thank you so much!
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