Please choose the correct ending to complete the given sentence: Education and Communications: [header] How to learn multiplication facts [title] Learn one table at a time. [step] Select one multiplication table to learn at a time. Start with the simple tables such as 2s , 10s , 5s, and 11s.

Ending1: Familiarize yourself with the multiplication tables that are given to you during the first year at school to learn of the multiplication tables. [substeps] Do this for the rest of the first year students at the school. Ending2: [substeps] You can also look for sheets of these over the years to help you learn a wide variety of multiplication facts. For example, " date b " is the table based on your approach to seven years from 3 years. Ending3: By the time you learn the more difficult tables such as the 7s and 8s, you will already know several facts. [substeps] Remember , 1 x 4 is the same as 4 x 1 so you only have to learn half of the multiplication table because the other half is just written the other way. Ending4: Later, you can use these tables more quickly. [substeps] Just like the table above, a two-row matrix tells you how many spaces in one cell are equivalent.

Answer format: ending1/ending2/ending3/ending4