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primary 5 | Maths
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primary 5 chevron_right Maths chevron_right Singapore

Help Pls. Thanks in advance

Date Posted: 4 months ago
Views: 104

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PrimaryOne
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180 answers (A Helpful Person)
Part 1
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Vignesh Vijayan
Vignesh Vijayan
3 months ago
You are correct. Need to multiply 80 by 2. However, I think the answer is 160 & not 166 as you shouldn't divide the total area of the big rectangle by the area of 1 small rectangle to get total number of small rectangles. The remaining length after fitting small rectangles along the 100 cm is 4cm (12 12 12 ... until 96cm). The length of 1 small rectangle is 5cm. So can't fit any small rectangles in the space 4cm by 50cm. Hope you can understand my explanation
Vignesh Vijayan
Vignesh Vijayan
3 months ago
I am sorry for posting a wrong solution but I think you are correct although I can't understand the last part of your explanation.