0+12=12
1+11=12
2+10=12
3+9=12
4+8=12
5+7=12
6+6=12
7+5=12
8+4=12
9+3=12
10+2=12
11+1=12
100
20 of them
An infinite number.
3 pairs of whole numbers add up to 7: 1 +6, 2+5, 3+4 (0+7 also equals 7, but zero is not a whole number)
6
49 of them.
There 4 pairs of primes that can give a sum 40 in addition. They are (3,37), (11,29), (17,23),(19,21).
To find the sum of the products of two different whole numbers that equal 7, we can identify the pairs of whole numbers whose product is 7. The pairs are (1, 7) and (7, 1), as well as (7, 1) and (1, 7) again. The product of each pair is 7, and since they are the same, the sum of these products remains 7. Therefore, the answer is 7.
Just 3 + 3
100
Only one pair.
The sum of two numbers is a whole number if both of the numbers are whole numbers, or if the sum of two fractions can be simplified to a whole number.