Posted by Anonymous on Monday, September 9, 2013 at 7:54pm.
Guess and Check is an important problemsolving strategy. Use guess and check to solve each puzzle. a) A number times itself is 100. What is the number? b) A number times itself is 225. What is the number?

Math  Ms. Sue, Monday, September 9, 2013 at 7:58pm
I'll be glad to check your answers.
Hint: find the square roots of 100 and 225.