Q1.
What is the length of this smaller part? How many such smaller parts make a unit length?
Answer
Each one-tenth has been cut into 10 equal parts.
1 unit = 10 one-tenths
1 one-tenth = 10 smaller parts
So 1 unit = 10 × 10 = 100 smaller parts
Length of one smaller part = 1⁄100 of a unit (one-hundredth)
Number of such parts in a unit = 100
1 one-tenth = 10 smaller parts
So 1 unit = 10 × 10 = 100 smaller parts
Length of one smaller part = 1⁄100 of a unit (one-hundredth)
Number of such parts in a unit = 100
Why it happens: cutting each of the 10 tenths into 10 pieces gives 10 groups of 10 pieces, i.e. 100 pieces in all. Each piece is therefore one-hundredth of the whole unit.
Did you know? On your ruler, 1 cm is divided into 10 mm. If each mm were divided into 10 again, each tiny part would be 1⁄100 cm — about the thickness of a human hair.