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How many three figure numbers have digits that add up to eight?
Wiki User
∙ 16y ago
Clearly A, B, and C are digits between zero and eight. A takes any value from 1 to 8.* There are thus eight possibilities for the value of A. Each value of A will dictate a value N, from 0 to 7, for (B+C). For a given value of N, B can take any value from 0 to N, and thus can take N + 1 different values, each corresponding to a particular value of C. So there are N + 1 ways of achieving (B+C) = N. The total number of combinations is therefore add up [N+1] between N=0 and N=7 = 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 = (8 + 1) x 8/2 = 9 x 4 = 36 And here are those 36 solutions: 800,701,710,611,620,602,521,512,530,503,422,431,413,440,404,332,323,341,314,350,305,233,242,224,215,251,206,260,143,134,152,125,116,161,107,170 *If A was zero, we wouldn't really have a three digit number as required.
Wiki User
∙ 16y ago
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How do you figure how many significant figures are in 235?
235 has 3 significant figures.This is because all three digits are non-zero numbers, and all non-zero numbers are considered significant.
How many different numbers can be formed with the digits 345?
Assuming you mean permutations of three digits, then the set of numbers that can be made with these digits is: 345 354 435 453 534 543 There are six possible permutations of three numbers.
How many digits are are used for printing the page numbers of a book that has 115 pages?
Three digits.
Which three digits numbers do the digits add up to 25?
There are a variety of three digits that add up to 25. Examples include 9, 8 and 8.
How many significant digits are there in the number 938?
All three numbers are significant digits, so 3.
How many three figure numbers have digits that add up to seven?
36
How many whole numbers have 3 digits?
there are 899 whole numbers that have three digits.
What are some 8 digit numbers divisible by 8?
You can always tell a number is divisible by eight by checking to see if the rightmost three digits are. If they are, then the whole number is. With that in mind then, you can make up all sorts of such numbers by just grabbing some combination that you know is divisible by eight, and tacking additional digits on to the left. For example, we know that 128 is divisible by eight (128 / 8 = 16), so any of these numbers are as well: 89469128 13948128 90173128 The number of digits doesn't matter, so we also know that a ridiculously large number like this one: 25098174509840582437575109283102477568758134024 is divisible by eight, because the last three digits are.
How many different numbers can be formed with the digits 345?
Assuming you mean permutations of three digits, then the set of numbers that can be made with these digits is: 345 354 435 453 534 543 There are six possible permutations of three numbers.
How do you figure how many significant figures are in 235?
235 has 3 significant figures.This is because all three digits are non-zero numbers, and all non-zero numbers are considered significant.
How many three digits are there in all?
There are 900 three-digit numbers.
How many digits are are used for printing the page numbers of a book that has 115 pages?
Three digits.
Which three digits numbers do the digits add up to 25?
There are a variety of three digits that add up to 25. Examples include 9, 8 and 8.
What are the three largest numbers that can be made using the digits?
depends on your answer
How many three digit numbers have no repeated digits?
757
What is the least three digits numbers that is divide by 5?
100
Is a group of three digits in a number is a whole numbers?
Yes.
