-7
1012
6 and 2
If you add 12 and 12, you get 24 If you add 24 and 6 you get 30 If you add 18 and 8 you get 26 If you add 36 and 4 you get 40 if you add 72 and 2 you get 74 if you add 48 and 3 you get 51
-10 and 2 -12 and 4 -20 and 12
12
your expression is this... x + -10 = 2 x = 12 You need a 12 to add to -10 to get 2
you can add Mod 12, this is like clock math. If it is 11 o'clock and you add 2 hours, it is then 1 o'clock. This is called addition Mod 12.
19
34
-7
-122
212
1012
24-First you add the first column, 2+2=4, you put that under the two numbers, then you add the next column, 1+1=2, you put that under both the numbers in the same column and you get 24! 12 +12 24 12 12 + __ 24
NEITHER! Look at 4+8 which you know is 12 4 is 2^2 and 8 is 2^3 2^2+2^3=12 but no power of 2 is equal to 12? So the answer is NEITHER. When you multiply numbers, you add the exponents and when you raise and exponent to a power, you multiply exponents. In the example i gave, you could factor out the smallest power and you have 2^2(1+2)=2^2x3=4x3=12 That is how you do this type of problem. Either raise the numbers to their powers and add them, or factor and add.
4