Mathematics for IGCSE & O level - Estimation (Section 1 - No. 34)
If rounding a number to 2 decimal places, what is the maximum value that can be in the 3rd decimal place before you round up?
4
5
9
0
คำอธิบาย
The digit in the third decimal place would have to be less than 5 to leave the 2nd decimal place as it is.