Use the numbers 0-9 in pairs so each pair has the same sum.
0, 9
1, 8
2, 7
Continue from there
To find pairs of numbers from 0 to 9 that have the same sum, we can start by listing the possible pairs:
0 + 9 = 9
1 + 8 = 9
2 + 7 = 9
3 + 6 = 9
4 + 5 = 9
These are the pairs of numbers that have a sum of 9.
If we want to find pairs with a different sum, we can repeat the process with a different target sum. For example, let's find pairs with a sum of 7:
0 + 7 = 7
1 + 6 = 7
2 + 5 = 7
3 + 4 = 7
And if we want to find pairs with a sum of 10:
1 + 9 = 10
2 + 8 = 10
3 + 7 = 10
4 + 6 = 10
5 + 5 = 10
We can continue this process for other target sums if desired.