Yes.
Any number between 0 and 12 that you like. There is no need for the sides of the rectangle to be whole numbers!
no
Any number minus itself equals zero. Any number plus its opposite equals zero. Any number times zero equals zero.
To achieve a whole of 1, you can add 0.5 and 0.5 together. Alternatively, you can use fractions like 1/4 and 3/4, or any other pair of numbers that sum to 1. For example, 0.25 plus 0.75 also equals 1.
It's about rounding numbers to their nearest whole number. Example, 1.3 gets rounded down to 1. Any number above x.5 is rounded up to the next whole number, so 1.5 or greater gets rounded up to 2. Taking a mathematics example, 1.3 plus 1.3 equals 2.6. This rounded to the nearest whole number is 3.
There are many combinations of numbers that can equal 44 when added together. For example, 20 plus 24 equals 44, and 30 plus 14 also equals 44. You can also use other pairs, like 10 plus 34 or 5 plus 39. Essentially, any two numbers that sum to 44 will work.
To find what plus what equals 516, you can use the equation x + y = 516, where x and y are the two numbers. For example, 258 + 258 equals 516. Alternatively, any pair of numbers that sum to 516, such as 500 + 16 or 300 + 216, would also satisfy the equation.
111111111111 plus 11111111111111 equals 11222222222222. This is found by aligning the numbers and performing standard addition. The result combines the two numbers effectively without any carrying needed in this case.
That is called an equation. Any time a certain amount of numbers equals another number, that is called an equation. This is a perfect example of one, as 10 does in fact equal 10.
We cannot answer since you didn't give any numbers at all to solve this with.
Yes, indeed. Any which way you add the numbers both will equal up to 15. Thus it is true.
The associative property of math states that the order of the numbers can be in any order when adding and multiplying.