math
posted by chantelle .
there are 122 houses eacg has number on letter box ,how many times does the digit 2 appear on the letter boxes?

single digit : 2 >1
double digit:
12>1
20, 21, ... 29,> 10
32, 42, 52, 62, 72, 82, 92 > 7
triple digit
102 , 112, 121, 122 >4
see if I missed any, then add them up
Respond to this Question
Similar Questions

Math
Each letter in the subtraction problem below represents a different digit from 0 through 9. The digits 3 and 5 do not appear in the problem. Replace each letter so that the answer to the subtraction problem is correct. GRAPE  PLUM … 
math 157
How many threesymbol codes (letter, letter, number) can be made from the letters S, P, Y and one digit fro the set {0, 1, 2,...9} without repitition? 
5th grade math
How do you do letter equations? "Each letter in the equation below represents a different digit from the set (1, 3, 4, 7, 8). find the value of each letter to make the equation true. Each letter must represent only one number throughout 
Mat 157
How many threesymbol codes (letterletternumber) can be made from the letters, S,P,Y, and one digit from the set {0,1,2,...,9] without repetition? 
Math
Emma has decided to sign up for a new email account. The program requires her to choose a password for the account that is first a letter, second a number digit, and finally a letter again (can be the same letter as the first entry). … 
math
There are 900 threedigit integers. The number of threedigit integers having at least one repeated digit is also a threedigit number. If that number is represented by abc where each letter is a digit, compute ab+c (I came up with … 
math
there are 122 houses,how many times does the digit 2 appear on the letterboxes? 
Math
There are 900 threedigit integers. The number of threedigit integers having at least one repeated digit is also a threedigit number. If that number is represented by abc where each letter is a digit compute ab+c. 
MATH
EACH LETTER IN EACH ADDITION PROBLEM STANDS FOR A NUMBER BETWEEN 0 AND 9.NO TWO LETTERS STAND FOR THE SAME NUMBER IN EACH QUESTION. FIND THE VALUE FOR EACH LETTER.FOR EACH PROBLEM, USE THE NUMBERS IN THE BOX NEXT TO THE PROBLEM. T … 
Math
Matt must take a new code for the lock to his deer lease. It must consist of 3 letters, followed by 5 digits, then 2 letter and 1 more digit. The first letter must be a vowel and the middle digit of the first 5 must be even. If no …