1.NUMBER SYSTEM- EXERCISE 1.6 ( continuation..)

 

Sums 17 and 18

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https://youtu.be/UavdYQsMjfY

Sums 19 to 21

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https://youtu.be/idODGHFfo7I

Sums 22 and 23

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https://youtu.be/G24TLl8YvNM

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