Despite conventional wisdom the answer is not 5, it is actually 4.
9
-6
12.
because the number are the same /example2 times 3 equals 6. 3 times 2 equals 6
You add 1 plus another one and you get 2
a number equals 2
5 is the sum. 2 and 3 are the addends.
-3/2
1 + 2 + 4 + ... + 2n = 2n+1 - 1
The answer to 2+2 is four because for example if you have two apples then you add two more then your sum would be four
The answer is 27. 10+15=25. 25+2=27.
3925