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primary 5 | Maths | Area & Volume
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Darren
Darren

primary 5 chevron_right Maths chevron_right Area & Volume chevron_right Singapore

Help me

Date Posted: 4 years ago
Views: 283

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goodsamathritan
Goodsamathritan's answer
745 answers (Tutor Details)
1st
I call this method ‘’Big minus Small’, in this case, larger rectangle minus small rectangle. Just imagine taking a larger piece of paper, cutting the smaller piece out, leaving behind the area of the concrete path.
Darren
Darren
4 years ago
Good explanation for me cause I'm not really good in maths
Darren
Darren
4 years ago
Wow I didn't know can do that
My method is outer- inner
20x14=280
12x18=216
280-216=64
But I will follow your method thank you
goodsamathritan
Goodsamathritan
4 years ago
what you’re doing is exactly the same! it’ll be better to show the addition of 1 m, don’t just magically pop out 20 and 14 ;)
Darren
Darren
4 years ago
Ok understand
Darren
Darren
4 years ago
❤️❤️❤️
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Aloysius Chan
Aloysius Chan's answer
2 answers (Tutor Details)