8 X 10 000 + 5 X 1 000 + 2 X 100 + 1 X 10 + 4

Sum teachoo

100.000 - YouTube

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100.000 - YouTube

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Question 2 - Find sum 1 x 2 x 3 + 2 x 3 x 4 + 3 x 4 x 5