1. Observe the units digits and state which of the following are not perfect squares.
a)...
Mathematics, 19.05.2020 04:05 taufajane3887
1. Observe the units digits and state which of the following are not perfect squares.
a) 4836 b) 8373 c) 6757 d) 4322
2. Find the sum of the following numbers without actually adding them
1+3+5+7+9+11+13+15
Level-2
3. Express the following as sum of consecutive odd numbers starting with 1.
a) 72 b) 112
4. State the number of numbers between
a) 112 and 122 b) 1002 and 1012
Level-3
5. State which of these triplets form Pythagorean triplets.
a) 4,5,6 b) 24,10,26
6. Find the square root by prime factorization method.
a) 3969 b) 5625
Answers: 3
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