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I assume you mean the sum of the digits.
If the first digit is 1, the other two digits have to sum 10. There are 9 different possibilities for this, from 1 + 9 to 9 + 1.
If the first digit is 2, the other two digits have to sum 9. There are 10 different possibilities for this, 0 + 9 to 9 + 0.
Adding it all up, it seems there are 19 such numbers.
What else can I help you with?
How many whole numbers between 100 and 400 have the sum of their two digits equal to another digits?
I believe here are 51 such numbers.
How many whole numbers have exactly 3 digits?
All the whole numbers between 99 and 1,000. Simple subtraction will give you a number, if that's what you meant to ask. 900, the numbers above are exclusive.
How many whole numbers have exactly four digits?
how many numbers exactly have 4 digits ? 8900, 8999, 9000, 9999
Write one whole number thatis between 740 and 760 which has digits that add up to 17?
There are two numbers between 740 and 760 whose digits sum to 17: 746 and 755
How many whole numbers between 100 and 999 equal the sum of 9?
45 of them.
How many whole numbers between 100 and 400 have the sum of their two digits equal to another digits?
I believe here are 51 such numbers.
How many whole numbers have 3 digits?
there are 899 whole numbers that have three digits.
How many whole numbers between 0 an 100 are there with a sum pf digits equal to 7?
07, 70, 16, 61, 25, 52, 34, 43: 8 numbers
How many 3 digits whole numbers whose sum is 3?
There are no 3-digit whole numbers whose digits sum to 3. The smallest 3-digit number is 100, and the largest is 999, but in neither case is the sum of the digits equal to 3.
How many whole numbers between 100 and 999 have 7 as their digits?
180
How many different whole numbers between 0 and 1000 have digits whose sum is 9?
999 are whole.
Can the ten digits be whole number?
No, but they can be whole numbers.
How many whole numbers are there between ten and 200 have exactly two identical digits?
27
What does 1.1equal in whole numbers?
A number with decimals (digits after the decimal point) is not equal to ANY whole number. You can round it to the nearest whole number, if you like - that's the closest you can get.
How many whole numbers have exactly 2 digits?
there are 89 twodigits in whole numbers
How many whole numbers between 1 and 100 use the digits 6 at least once?
19 do.
How many whole numbers have exactly 3 digits?
All the whole numbers between 99 and 1,000. Simple subtraction will give you a number, if that's what you meant to ask. 900, the numbers above are exclusive.
