Shawn Wong's answer to crystal's Primary 3 Maths Singapore question.

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Shawn Wong
Shawn Wong's answer
61 answers (Tutor Details)
1st
The sections highlighted in grey are extra and for your reference. You will not need it once you understand how to get from the 1st guess to the 2nd guess, which technically will give you the right answer.
crystal
Crystal
3 months ago
Thanks sir :)