Wei Hong Tan's answer to Hanis's Secondary 4 Maths Singapore question.

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Wei Hong Tan
Wei Hong Tan's answer
11 answers (Tutor Details)
1st
Take note of your standard form and calculations!

Standard form should have only 1 digit before the decimal place.

When you divide 10^7 by 10^4, you should substract the powers (7-4=3)