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primary 2 | Maths
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Date Posted: 5 years ago
Views: 347
Add the two equations together. In other words,
Pentagon + arrow = 886
Pentagon - arrow = 396
If we collect them together, then
Pentagon + arrow + pentagon - arrow = 886 + 396
But the two arrows cancel each other
2 x pentagon = 1282
One pentagon is 1282/2 = 641
This means that one arrow is 886 - 641 = 245.
Pentagon + arrow = 886
Pentagon - arrow = 396
If we collect them together, then
Pentagon + arrow + pentagon - arrow = 886 + 396
But the two arrows cancel each other
2 x pentagon = 1282
One pentagon is 1282/2 = 641
This means that one arrow is 886 - 641 = 245.
Thank you for your explanation
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Hope this helps
Date Posted:
5 years ago
Thank you
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