Let me explain the trick to this.The first two digits it's the product of the two numbers multiplied together( 8 x 2 =16 ), and the following units contains the sum of the two numbers added together( 8 + 2 = 10), and the number in the ones place is the difference of the two numbers( 8 -2 = 6). So remember, the way to compose a math sentence using this equation is to combine the product, the sum, and the difference of the numbers together( without any addition). Therefore, 8 + 2 equals 16106.
If you notice properly the third and fourth digits or just the third digit in the numbers have the sum. For example in 8+2=16106, 10 is in between of 16 and 6