EASY
9th Chhattisgarh Board
IMPORTANT
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What do you mean by digit sum?

Important Questions on History of Mathematics

MEDIUM
9th Chhattisgarh Board
IMPORTANT
Mathematics Class - 9>Chapter 1 - History of Mathematics>Exercise>Q 2
Find the digit sum of the following numbers:
15, 38, 88, 99, 412
MEDIUM
9th Chhattisgarh Board
IMPORTANT
Mathematics Class - 9>Chapter 1 - History of Mathematics>Exercise>Q 3
What should be added to the following number to make them divisible by 9?
241
EASY
9th Chhattisgarh Board
IMPORTANT
Mathematics Class - 9>Chapter 1 - History of Mathematics>Exercise>Q 4
Write the usefulness of digit sums.
MEDIUM
9th Chhattisgarh Board
IMPORTANT
Mathematics Class - 9>Chapter 1 - History of Mathematics>Exercise>Q (1)
Find the following product using the method Urdhwatirygbhyaam:
23×32
MEDIUM
9th Chhattisgarh Board
IMPORTANT
Mathematics Class - 9>Chapter 1 - History of Mathematics>Exercise>Q (2)
Find the following product using the method Urdhwatirygbhyaam:
44×52
MEDIUM
9th Chhattisgarh Board
IMPORTANT
Mathematics Class - 9>Chapter 1 - History of Mathematics>Exercise>Q (3)
Find the following product using the method Urdhwatirygbhyaam:
92×37
MEDIUM
9th Chhattisgarh Board
IMPORTANT
Mathematics Class - 9>Chapter 1 - History of Mathematics>Exercise>Q (4)
Find the following product using the method Urdhwatirygbhyaam:
55×55
MEDIUM
9th Chhattisgarh Board
IMPORTANT
Mathematics Class - 9>Chapter 1 - History of Mathematics>Exercise>Q (5)

Find the following product using formula Urdhwatirygbhyaam:

123×321