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Topic:
How does Singapore Maths explain negative multipliers & divisors?
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How does Singapore Maths explain negative multipliers & divisors?
Posted:
Dec 12, 2016 8:39 PM


I bought the complete set of Singapore Maths books from Earlybird Preschool Maths 1A all the way toP rimary Maths 6B. Now I want to know the definition of a negative number. You usually find patterns. 5  2 = 3 4  2 = 2 3  2 = 1 2  2 = 0 1  2 = 1 0  2 = 2 and so on.
But where and how does Singapore Mats DEFINE a negative number? For example, Does it teach n  n = 0 or +n + n = 0?
Also, how does Singapore Math explain say, negative three multiplied by negative two? Again, elsewhere you just see patterns such as  3 x +3 = 9  3 x +2 = 6  3 x +1 = 3  3 x 0 = 0  3 x 1 = +3  3 x 2 = +6 and so on.
Surely there has to be a more intuitive explanation than this forced logic!
Also, I would also really like to see the Singapore Maths explanation of division with a negative divisor.
Of course it's possible Singapore Maths just ignores the meaning of division with negative divisors like most other mathematics texts.
Hope you can help!
Jonathan



