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primary 5 | Maths | Whole Numbers
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Bree
Bree

primary 5 chevron_right Maths chevron_right Whole Numbers chevron_right Singapore

Please help and use a simple method, thanks!

Date Posted: 3 years ago
Views: 277
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Wei qi
Wei Qi's answer
1 answers (A Helpful Person)
1st
Jim have 4 units, Roy have 1 unit.

Hence,
60 is 4u-1u
60- 3u
20- 1u

Roy have 1 unit,
1 unit is 20.

Hence,
Siti paid 50-20= 30.