6 (a) 34 55 76 83 111 121 From this list of numbers, write down all the multiples of 11. ...................................................[1] (b) Zaid has a non-calculator method for working out if a number is a multiple of 11. He shows his method for the number 919 281. Subtract and add alternately the digits in the number. 9-1+9-2+8-1 = 22 Check if the answer is a multiple of 11. 22 = 2#11 As 22 is a multiple of 11 then 919 281 is a multiple of 11. Show that the number 918 271 937 is a multiple of 11 by using Zaid’s method. [2]