Mathematics for IGCSE & O level - Limits Of Accuracy (Section 1 - No. 2)
A piece of blue string is 12.6 cm long to the nearest millimetre. What is the upper bound of the length?
12.5 cm
12.55 cm
12.6 cm
12.65 cm
คำอธิบาย
To the nearest mm means to the nearest 0.1cm, so the upper bound is 12.6 + 0.05=12.65