About 7000 children take the 11+ a year.
You take the 11+ so that the school can decide which secondary school you are going to
3 + 11 + 11 + 11 + 12 + 13 + 15 + 15 + 16 + 17 + 19 = 143
11+-18 you are adding a negative so you take 18-11=7 and the answer is the opposite of that answer, so -7
40
Expand z plus 11 times z plus 11 = (z+11)(z+11) = z2 + 22z + 121.
negative twelve of coarse, just take of the negative out and just say 11 plus 1
X + 11 = 37. subtract 11 from both sides; X = 37 - 11 = 26.
11 + 4x
5 + 11 is 16 take away 12 leaving 4
8+11= 8+11
10 plus 1 is 11.