JASLYN LEE HUI MIN's answer to Grace Goh's Primary 5 Maths question.
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hope this helps!
Date Posted:
6 years ago
Thanks
Thanks
the alternative would be the model method:
10 units for rulers
4 units of notebooks
10 units x 0.60 + 4 units x 0.90 = 168
9.6 units = 186
1 unit = 17.5
total spent on rulers = 10 units x 0.60= 10 x 17.5 x 0.60 = $105
end
10 units for rulers
4 units of notebooks
10 units x 0.60 + 4 units x 0.90 = 168
9.6 units = 186
1 unit = 17.5
total spent on rulers = 10 units x 0.60= 10 x 17.5 x 0.60 = $105
end
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