To tell whether a number is even or odd, look at the number in the ones place. That single number will tell you whether the entire number is odd or even. 1  An even number ends in 0, 2, 4, 6, or 8. 2  An odd number ends in 1, 3, 5, 7, or 9.s you can see, there are rules that tell what happens when you add, subtract, or multiply even and odd numbers. In any of these operations, you will always get a particular kind of whole number. But when you divide numbers, something tricky can happen âyou might be left with a fraction.
The benefits to these plans are huge. Customers can still get access to hot new smartphones and reliable networks with nationwide coverage at a fraction of the price that they'd pay subscribing to a service from AT&T or Verizon Wireless. Of course, there are a few downsides to these prepaid services.
With prepaid plans, the phone and service are two separate transactions. You buy the phone and then choose a service plan. Prepaid carriers TracFone (80), Straight Talk (77) and Net10 (77) beat all four major carriers for service and got high marks for value.