Yutong's answer to P's Secondary 1 Maths Singapore question.
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Given value = 143200
Possible x = 4, 5, 6
The value before being corrected could be:
e.g. value = 143210, then by being corrected to 4s.f., the digits after the "2" becomes "0"s.
e.g. value = 143201, then by being corrected to 5s.f., the digits after the "0" becomes "0"s.
e.g. value = 143200, if corrected to 6s.f., it is still "143200".
Possible x = 4, 5, 6
The value before being corrected could be:
e.g. value = 143210, then by being corrected to 4s.f., the digits after the "2" becomes "0"s.
e.g. value = 143201, then by being corrected to 5s.f., the digits after the "0" becomes "0"s.
e.g. value = 143200, if corrected to 6s.f., it is still "143200".
Date Posted:
3 years ago
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