Reply To: Week 3 Video Lessons

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#30264
Shikha Dhingra
Participant

Hi Ken

I have a doubt in question 6 (practice 4) lesson 15.

17 x 16  My answer is 282 but the answer in the course book is 272. pls clarify

17 -3

16 -4

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13/12    1 at tens place will be added to 3     therefore 142

as base is 20 we multiply by 14 by 2 therefore 282

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