goodsamathritan's answer to Mani's Primary 6 Maths Percentage Singapore question.
Tks so much
How did you derive at 10 unite and 20 units instead of 1:2?
How did you derive at 10 unite and 20 units instead of 1:2?
How did you derive to 10:20 units?
just multiply each by 10. if you’re asking why i choose to do that, it’s because i don’t want to work with too many decimal places. for eg, 10/6 of 20u is not as “ugly” as 10/6 of 2u.
if one is comfortable using fractions/long decimals, this 2:1 to 20:10 conversion can be skipped.
if one is comfortable using fractions/long decimals, this 2:1 to 20:10 conversion can be skipped.
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