50 and 5, 51 and 4, 40 and 15........
50 5
They add up to 55
The two square numbers that add up to 225 are 144+81 = 225
2 numbers that add up to 8
62.5 and 37.5
60
45 and 10
45 and 10
45 and 10
55
55
10 and 45. 10=5*2 10+45=55 45*2=90 45=5*9 10*9=90
there are many combinations of numbers that add up to 84. Some examples are 41+43, 35+49, 29+55, 24+61, and 18+66.
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.
They add up to 55
137 and 11 are two prime numbers that add up to 148.
No two prime numbers can add to 119.
The two square numbers that add up to 225 are 144+81 = 225