one digit: (9-1):1+1=9
two digits: 2x((99-10):1+1)=180
from 100 to 120, we used: 3x((120-100):1+1)=63
So, total is: 9+180+63=252
one digit: (9-1):1+1=9
two digits: 2x((99-10):1+1)=180
from 100 to 120, we used: 3x((120-100):1+1)=63
So, total is: 9+180+63=252
The pages of a book are numbered consecutively from 1 through 120. There are ............ digits are there in this numbering.
The pages of a book are numbered consecutively from 1 through 120.
There are...... digits are there in this numbering.
the pages òf a book are numbered consecutively from 1 through 500. There are ......... digits are there in thí numbering
A movie theatre has eleven rows of seats . The rows are numbered from 1 to 11 . Odd - numbered rows have 14 seats and even - numbered rows have 15 seats . How many seats are there in the theatre ?
A movie theatre has eleven rows of seats.The rows are numbered from 1 to 11.Odd - numbered rows have 14 seats and even - numbered rows have 15 seats.How many seats are there in the theatre?
A movie theatre has eleven rows of seats.The rows are numbered from 1 to 11.Odd - numbered rows have 14 seats and even - numbered rows have 15 seats.How many seats are there in the theatre?
A movie theatre has eleven rows of seats.The rows are numbered from 1 to 11.Odd - numbered rows have 14 seats and even - numbered rows have 15 seats.How many seats are there in the theatre ?
.There are 16 rows of seats in a school hall. There are 75 seats in the last row. If there is an increase of 3 seats, starfting from the first row,
a.How many seats are there in the first row?
b. How many seats are there in the school hall?
Choose 3 digits from 8, 6, 0, 5, 2 and 1 to form 3-digit numbers. How many odd numbers
are there? (The repetition of digits is not allowed)giúp me với