When multiplying a 2-digit number by a 1-digit number you can use both mental and written methods. Let's take a look at an example of solving a multiplication problem in your head. Before you ...

You add the same number lots of times. This can also be written as a multiplication calculation. There are five equal groups of two. The five represents the number of groups and the three ...

There are two types of bipolar disorder bipolar 1 disorder and bipolar 2 disorder. Bipolar 1 disorder is characterized by moods vacillating between depression and mania. With bipolar 2 disorder, moods ...