Monday 24 February 2014

Multiplying with two digit numbers

Hello All:

So it looks like we need to work on our multiplication. It is important that you do know all of your times tables, especially when we get to multiplying multi-digit numbers. Here are are few strategies you could use to multiply.

35 x 15 =

Using arrays:

Using place value 

Using traditional algorithm 




Now you try it:

42 x 14 =                23 x 18 =                 48 x 33 =             92 x 35 =          75 x 15 =


45 x 54 =                 43 x 15 =                   55 x 12 =           15 x 10 =         54 x 12      

3 comments:

  1. were we supposed to do all the questions using the same strategy or use different strategies for some questions.

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  2. Hey Stefan: That is up to you. If you found a strategy that really works that do that. But if you would like to try all of them that is a great exercise as well. Also I will hand back the tests on Thursday. I am at another meeting tomorrow. I want to be able to work through them.

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  3. Even though we got the tests back, I'm not overall happy with the mark I got!

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