I do not understand this video!

WHICH ONE ? I CANT UNDERSTAND SPECIFY YOUR AWNSER FIRST THEN ASK

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If it is the vedio in lesson 1 data handling it is that after 4 tally marks you put the the fifith tally mark across to make it into a bundle . so if you have 4 bundles and three tally marks, then you just have to multiply and then add. as 1 bundle has 5 marks you do 4x5=20, you add three because you have three more which cant be included in a bundle 20+3=23.

For silvi mary sunil. It is QUESTION instead of ANSWER.

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The first explanation is for Shravan.

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My vedio spelling is wrong

It is supposed to be video.

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which video??
 
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Which one?
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which
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which video ---- video
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can yu pls tell your question what areyou trying to say
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which video
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Which video
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Which video
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Which video you don't understand ??????????
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WHICH?
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ya, some of the videos are tere in which i can also not understand
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What?????
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What are you looking for?