Ex.1 (403)2 = _____ Ex.2 (506)2 = _____
Square the hundreds digit for the first numbers of the answer.
Ex.1 (403)2 = 16____ Ex.2 (506)2 = 25____
Multiply the hundreds digit times the ones digit and double for the middle two digits of the answer.
Ex.1 (403)2 = 1624__ Ex.2 (506)2 = 2560__
Square the ones digit for the last 2 digits of the answer.
Ex.1 (403)2 = 162409 Ex.2 (506)2 = 256036
Try these problems:
(608)2= (903)2= (701)2= (502)2=