Answer: 2
Explanation:
To estimate decimal numbers you have to decide if you need to round up or down. If the number is 4 or less round the number down. For example, 2.4 would round down to 2. For numbers 5 or higher you round up. For example, 0.87 would round up to 1. Now that you have your numbers, you will multiply. 2 x 1, is 2 one time so the answer is 2.