Remember, a prime numbers can only be divided by itself and 1. You can use your knowledge of multiples (times tables) to eliminate numbers. Start with the smallest numbers and work your way up.
BOY 1: Uno más uno es igual a dos. BOY 2: Cinco menos uno es igual a cuatro. BOY 3: Diez dividido por dos es igual a cinco. Tip: This video can be used as an interactive introduction to this ...
The global construction market is sluggish and has been for several years. After enjoying boom years from 2012 to 2014, the bubble burst, leaving international contractors scrambling. This ...