Page 76 - NUMINO Challenge_M1

EExxpplloorree For 1-digit numbers, the number of digits equal the number of
numbers.
1, 2, 3, 4, 5, 6
Numbers: 6, Digits: 6
For 2-digit numbers, the number of digits equal twice the
number of numbers.
30, 31, 32, 33, 34, 35, 36
Numbers: 7, Digits: 7 2 14
For 3-digit numbers, the number of digits equal three times the
number of numbers.
200, 201, 202, 203
Numbers: 4, Digits: 4 3 12

EExxeerrcciissee When writing the numbers from 10 to 20, how many digits would
be there?

EExxeerrcciissee Numbers are written in order, starting from 20. If there are 14
digits, what would be the last number?

20 21 22 23

Numbers 73