One of the most irritating inconveniences is a table that wobbles back and forth when you lean on it. Assuming the cause is uneven ground, math proves that if you rotate the table, the legs will find ...

2, 4, 6, 8, 10, 12 and so on are all multiples of 2. Multiples of 2 always end with an even number. These numbers are all in the 2 times table. Knowing your times tables is really helpful with mental ...