645 - 151 = 494 494 / 2 = 247 247 + 151 = 398 Which means: 398 + 247 = 645 and 398 - 247 = 151
398 and 247.
The two numbers are 50 and 63. Their sum is 113 and they have a difference of 13.
the difference
1 and 0 are the two whole numbers with their sum same as their difference
645 - 151 = 494 494 / 2 = 247 247 + 151 = 398 Which means: 398 + 247 = 645 and 398 - 247 = 151
398 and 247.
a + b = 645 a - b = 151 Add: 2a = 796 a= 398, making b = 247
Let the two numbers be represented by 'a' and 'b'. Then, a + b = 645 And a - b = 151............adding these two eqations together gives :- 2a = 796 : a = 398..........and b = 645 - 398 = 247 (or b = 398 - 151 = 247).
Guess and check used to be called trial and error. If you look at 645 and realize that 400 and 245 differ by 155, you know you're only four away. So you try 398 and 247 and there you are.
445
The sum is 150*151/2 = 11,325
Sum means adding so the sum is 645 + 10 = 655. Hope it helped!
The difference of two numbers is 8. Their sum is 22. What are the two numbers?
Difference. A sum is the result of adding two numbers, and a difference is the result of subtracting two numbers.
Two numbers with a sum of 4 and a difference of 9 are -6.5 and 2.5.
The sum of 483 and 162 is 645.