Maths / Playing With Numbers / Divisibility Rule of 11

QUESTION
 

using divisibily tests determinw which of the following numbers are divisible by 11

  • 5445
  • 10824
  • 7138965
  • 70169308
  • 1000001
  • 901153
  • EXPLANATION
    Explain TypeExplanation Content
    Text

    5445

    5+4=9

    4+5=9

    9-9=0

    yes it is divisible by 11

    (b) 10824

    1+8+4=13

    0+2=2

    13-2=11

    yes it is divisible by 11

    (c) 7138965

    7+3+9+5=24

    1+8+6=15

    24-15=9

    no,it is not divisible by 11

    (d) 70169308

    7+1+9+0=17

    0+6+3+8=17

    17-17=0

    yes it is divisible by 11

    (e) 1000001

    0+0+0+1=1

    1+0+0=1

    1-1=0

    yes it is divisible by 11

    (f) 901153

    9+1+5=15

    0+1+3=4

    15-4=11

    yes it is divisible bye 11

     

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