14
9
You need to add 18 to negative 8 to get 10.
You need to add 12.
You need to add 6 - (-9) = 6 + 9 = 15.
you need to add 10
21
You need to add 7 (or +7)
12
Add 11 -6 + 11 = 5
2
You can add the whole part of the numbers separately - no need to convert those. Then add the fractional parts in the usual way, i.e., find a common denominator, convert the fractions to this denominator, and add the numerators. Here is an example: 5 1/2 + 3 2/3 Add the whole part and the fractional part separately: 8 + (1/2 + 2/3) Convert to a common denominator: 8 + (3/6 + 4/6) Add the fractional part: 8 7/6 Since in this case 7/6 is greater than 1, you need to subtract one, and add one to the whole part: 7 1/6
No, 2 + 6 + 8 is not equal to 24. The sum of 2, 6, and 8 is 16 (2 + 6 + 8 = 16), not 24. To check if two numbers are equal, you need to compare their values directly, and in this case, 16 is not equal to 24.