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TOPIC: Help!

Help! 1 year, 8 months ago #2979

Three questions:

86 65 74 77 62 89 the answer is 50.

32 25 31 24 39 23 answer is 47

39 36 39 40 40 44 42=48.

WHYYYYY!!!!????? please, please, pleeeeeeease help!
  • junjun
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Re: Help! 1 year, 4 months ago #3206

top one:
jump overs, 86-74-62-50 (jump -12)
65-77-89 (jump +12)

middle one
the '32' should be '23'
jump overs
23-31-39-47 (jump 8)
25-24-23 (jump -1)

bottom one
jump overs
39-39-40-42 jump is 0,1,2
36-40-44-48 jump is 4
  • StephenF
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Stephen Fowler is a specialist 11+ tutor in Manchester. He is the Author of the Chuckra 11+ Maths series. Read more about Stephen here.
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