Please choose the correct ending to complete the given sentence: Education and Communications: [header] How to improve mental math skills [title] Visualize the equation in your head. [step] The first step in solving a math problem in your head is to visualize the problem mentally. Imagine the numbers and the equation in your head.

Ending1: As you solve portions of the problem, visualize the new numbers that you're working with. Repeating numbers mentally or verbally, in a whisper, will also help you to remember more significant numbers in the equation. Ending2: This way, you'll feel this new image when you see your math papers later in the day. [substeps] You may be more aware of your words and body language when you're visualizing the equation. Ending3: When you picture the equation, you then have a much better time because you are thinking of the process in your head, rather than the equations. [substeps] For example, imagine that math can be only done in a particular time period. Ending4: When you think about each answer (number, or word) create a picture about what could happen, and then try to make it into a happy picture. Once you have a picture of each answer in your head, work on how to make it into a happy picture of each part of your brain.

Answer format: ending1/ending2/ending3/ending4