0
1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1 is one example.
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What two numbers add up to 21 and multiply 30?
51
What is the five consecutive numbers that add up to 115?
The numbers are 21, 22, 23, 24, and 25.
What are four consecutive numbers that add up to 90?
21, 22, 23, 24
What two numbers add up to 75 and multiply to 1134?
1209
How many three digit numbers add up to 17?
An infinite number if you can use positive and negative numbers.
How do you add a 3 digit number and a two digit number?
You line up the last numbers and then add it!
What 2-digit prime number has a sum of 10 when you add up its digits?
Two-digit prime numbers whose digits add up to 10 are:193773
How many two-digit numbers have digits that add up to 10?
To make the list of two-digit numbers with digits that add up to 10, first write the pairs of single-digit integers that add up to 10. They are (1,9), (2,8), (3,7), (4,6), (5,5). Then recognize that each of these pairs of numbers, except 5, can be combined in two different ways to make two-digit numbers that satisfy the problem. 19 and 91 28 and 82 37 and 73 46 and 64 55 So there are nine two-digit numbers with digits that add up to 10.
What 4 numbers add up to 21?
25
How many two digit numbers add up to the number 8?
44 62 35 17 26 53 Six numbers add up to 8
What six odd numbers add up to 100?
21, 21, 21, 21 , 15, 1
How many three digit numbers have digits that add up to zero?
None. The only way for it to be possible would be 3 zeros which is not considered a 3 digit numbers.
Composite numbers up to100 have 1 as their unit's digit?
21, 51, 81, 91.
What two numbers add up to 21 and multiply 30?
51
What two concecutive numbers add up to 41?
20 and 21
What 3 consecutive numbers add up to 18?
21
What 4 single digit numbers add up to 24?
28
