**always be 15**no matter what number was chosen in step 1!

I like to use these at the start of a math lesson for a quick math mental warm up, or if there are a few precious minutes to spare that need to be filled with something educational.

I've included an example of the process underneath the image below.

**Example:**

Step 1: I'm thinking 100

Step 2: 100 X 3 = 300

Step 3: 300 + 45 = 345

Step 4: Double 345 = 690

Step 5: 690/6 = 115

Step 6: 115 - 100

**= 15!**