Question Detail

what strategy should I use to workout 45 times 8 mentally?

Jun 6, 2016 1:53am

what strategy should I use to workout 45 times 8 mentally?

  • Math
  • K
  • Class Culture

1

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    • Sep 1, 2016 1:23pm

      Hi Kabuku!

      I agree with all of the great suggestions Josh gave above!

      I also really love using the doubling and halving strategy when one of the numbers end in a 5. I could double the 45 to 90 and half the 8 to 4 and know 90x4=360 much easier and that it has to be equivalent because of what is happening to the area when I do that!

      Fun stuff!
      Kristin