Mental multiplication is hard, but there are strategies and tricks that you can use to do this. In a previous post, we have learned an alternative way on how to multiply 2-digit number by 2-digit number faster, and in this post, I am going to share another way, on how to do mental multiplication of of 2-digit numbers by 1-digit numbers. In this strategy, we will split the numbers into tens and ones, multiply separately, then add the products. Let’s have our first example.

**The Math Trick**

Example 1: 25 × 7

In this example, we split 25 into tens and ones 20 and 5. Then, we multiply both of them by 7.

Step 1: 20 × 7 = 140

Step 2: 5 × 7 = 35

Adding both products, we have Continue reading