Hello Year 5.

Can you solve this maths problem?

We will reveal the answers tomorrow morning. Please explain your working out/reasoning!

Good luck.

We look forward to reading your responses,

Mrs Avdiu & Ms Robertson

 

 

11 comments on “Daily Maths Challenge (1.4.20)

  1. Gabriella says:

    The multiples of 3 using all the numbers from 0-9 are 30, 12, 69, 45, 87 and
    the multiples of 7 using all the numbers from 0-9 are 49, 63, 7, 105, 28.
    45, 36, 70, 28, 19, are special numbers that come from lines 8, 9, 10, and 19 in a famous French triangle.
    Can you guess what the triangle is?

    By the way, HAPPY BIRTHDAY TO AYAKO!!!!!!!!!!!!!!!!!!!!!??❤️

  2. Hi,
    Multiples of 3: 30,12,45,69,78
    Multiples of 7: 91,86,70,35,42
    Prime numbers: 83,47,59,61,02 or 83,41,59,67,02
    I found this activity fun and i had to persist on the prime numbers section

  3. Multiples of three:
    18
    24
    36
    75
    90
    Multiples of seven:
    205
    147
    63
    98
    Prime numbers:
    02
    41
    53
    67
    89

  4. GOOD MORNING MRS AVDIU AND MISS ROBERTSON!

    TRICK FOR WORKING OUT MULTIPLES OF 3:
    If you add up all the digits and it makes a number which is divisible by 3 then the whole number is divisible by three. So if you add 0+1+2+3+4+5+6+7+8+9 it equals 45.
    45 is divisible by three so you can arrange the digits in any order that you want and it will be divisible by 3.

    TRICK FOR WORKING OUT MULTIPLES OF 7 FOR VERY BIG NUMBERS:
    If you take the last number in a big number to see if it is divisible by 7, double it and then take it away from all the other numbers before the last number E.G:
    357 – double 7 is 14.
    35 -14 = 21 meaning it is divisible by .

    ANSWERS TO MAKE FIVE NUMBERS:
    QA) 39,12, 78, 60, 45.
    QB) 105, 98, 63, 42, 7.
    QC) 5, 67,23,401, 89.

    REGAN ✍

  5. Mathilde says:

    Hello Mrs Avdiu and Mrs Robertson here is my answer I hope you have a great day
    A. 3 6 9 12 15
    B. 7 14 21 28 35
    C. 2 3 5 7 11
    My math problem is : five prime numbers that add up to 28
    Answer : 2 3 5 7 11

  6. A- 3,6,9,12,15
    B- 7,14,21,28,35
    C- 0,1,2,3,5

  7. Hello Mrs Avdiu and Ms Robertson, I hope you are all well. I did find this quite hard but I think I got there in the end. This is what I came up with:

    a. 1245678903 and 1234578906 and 1234567809 and 3456789012 and 2346789015
    b. 1234568907 and 2356789014 and 3456789021 and 8345679021 and 1345679028
    c. 2345789601 and 2457890613 and 8065432971 and 7065421983 and 4325689701

  8. Hi Y5
    Here are the numbers I got for the math challenge!

    Five numbers that are multiples of three
    36 ,57,21,84 & 90

    Five numbers that are multiples of 7
    49,28,70,35 & 21

  9. Hello
    Multiples of 3= 30, 18, 27, 45, 69
    Multiples of 7= 7, 28, 49, 63, 105
    Prime numbers= 5, 29, 47, 601, 83

  10. Hello everyone! I hope your day was good so far. For today’s task I came up with these results:

    A) 18, 27, 36, 45, 90
    B) 7, 42, 63, 98, 105
    C) 47, 89, 109, 523

    This was a really fun challenge!!

  11. Hello everyone ?
    My numbers are:
    a.21, 54, 63, 78 and 90 (this was quite easy)
    b.7, 28, 49, 63 and 105 (this took some time to work out. My brother gave me a clue to think about a three digit number.)
    c.2, 53, 67, 89 and 401.
    Stay safe
    Maia?

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