Friday, 7 May 2010

Multiplying by 10 and 100

MrsHinsley's maths group have been multiplying by 10 and 100 and describing the effect. Then they used this skill to multiply multiplesof 10.

Can you try these at home to see if you still have the skill?

5 x 100, 19 x 10, 26 x 100, 45 x 10, 67 x 10

What about trying these

5 x 30, 7 x 80, 5 x 90, 6 x 60, 7 x 80

Can you dsescribe what happens when you multiply by 10 or a 100?

I can feel lots of housepoints in the air for anyone who has a go.

Good Luck
at

3 comments:

  1. Ola7/5/10

    Dear Mrs Hinsley and Miss Speers,

    The 1 question is 5x100=500
    The 2 question is 19x10=190
    The 3 question is 26x100=2600
    The 4 question is 45x10=450
    The 5 question is 67x10=670
    The 6 question is 5x30=150
    The 7 question is 7x80=560
    The 8 question is 5x90=450
    The 9 question is 6x60=360
    The 10 question is 7x80=560


    You just add one 0 to the answer when you times it by 10

    You just add two 0 to the answer when you times it by 100

    Love Ola

    ReplyDelete
  2. Natalia G15/5/10

    5x100=500
    19x10=
    26x100=2600
    45x10=450
    67x10=670
    5x30=150
    7x80=560
    45x90=450
    6x60=360
    7x80=560

    From Natalia G

    ReplyDelete
  3. Natalia G26/5/10

    19x10=190

    I just forgotten to put the answer.

    ReplyDelete