Mathematics

5th -

6thgrade

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Working Backwards

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6 questions

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  • 1. Fill in the Blank
    1 minute
    1 pt

    Riaz thinks of a number.

    He says,

    'Halve my number and then add 17

    The answer is 23’

    What is Riaz's number?

  • 2. Fill in the Blank
    1 minute
    1 pt

    Lara chooses a number less than 100

    She divides it by 3 and then subtracts 11

    She then divides this result by 2

    Her answer is 10.5

    What was the number she started with?

  • 3. Fill in the Blank
    1 minute
    1 pt

    Lara chooses a number less than 20

    She divides it by 2 and then adds 6

    She then divides this result by 3

    Her answer is 4.5

    What was the number she started with?

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