What is 125 squared?
What is 125 squared?
Approach: Use (120 + 5)^2 or the rule for numbers ending in 5.
15625. 12 * 13 = 156, append 25.
Follow-up: What is 135 squared?
Key concepts: mental squares.
What is 125 squared?
Approach: Use (120 + 5)^2 or the rule for numbers ending in 5.
15625. 12 * 13 = 156, append 25.
Follow-up: What is 135 squared?
Key concepts: mental squares.