Number Theory
New Zealand
Level 4
Special Numbers
Interactive practice questions
Is $977$977 a palindrome?
Yes
A
No
B
Easy
< 1min
Is $828$828 a palindrome?
Easy
< 1min
Write down the next $3$3 triangular numbers.
Easy
< 1min
Find the $6$6th triangular number.
Medium
1min
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