When multiplying, look for the easy factors: multiplication facts that you know really well or problems you can easily solve. For example, you may find multiplying by 2 and 10 easy.
James wants to organize his Matchbox cars into boxes. He has 2 large boxes to fill up. Each box holds 7 rows of 8 cars each. How many cars does James have if he fills up both boxes?
You can check your skills in multiplying by 2 with this quiz. To pass, you will need to know how to do basic addition to double a number.
Get more details on multiplying by 2 when you watch the lesson called How to Multiply by 2. The lesson covers the following goals: