"Sum" usually implies that you add at least two numbers together; not just one. For completeness sake, you might thing of the "sum of a single number" as the number itself.
The sum of 45 is always exactly 45.
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The sum of all integers between 45 and 90 is 3105.
if 9/10 =45, then the full sum is 50 (45/9x10) If you want to find 9/10, then it's (45/10x9) which is 40.5
45/(C + 17)
20+30+45 = 95
It is 9+36 = 45
The sum of 45 and 246 is 291.
-45
1, 3, 5, 9, 15, 45 (sum = 78).
16 + 45 = 61
It is: 45+13 = 58
The sum of 30 and 45 is 75.
−45 + 17 = -28
45.
The sum of all integers between 45 and 90 is 3105.
60
The sum is 300+45 = 345
if 9/10 =45, then the full sum is 50 (45/9x10) If you want to find 9/10, then it's (45/10x9) which is 40.5