continues the pattern 3, -6, 12, 4, 20
look for patterns between the numbers first and see where it goes...3, -6, 12, 4, 20 ((distance between 3 and - 6 is -9) -9 +18 -8 +16 (let's continue the pattern )20, 13, 27, 21, 33....... -7 +14 -6 +12
