Chor Teng's answer to Bree's Secondary 1 Maths Singapore question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Chor Teng
Chor Teng's answer
16 answers (Tutor Details)
1st
2 9 0 0

To round off in the 10s,
It is 290 tens.
Hence it is rounded off in 3 significant figures.

To round off in whole number, you round off to the "ones",
Which is 2900.
Hence it is 4 significant figures.

So when you round off in the 100s,
It is 29 hundred.
Which is 2 significant figures.

Does this help?
Bree
Bree
4 years ago
Thank you