# Category Archives: Math ShortCut

# Multiplying 2 Digit Numbers Fast

The usual steps that we in multiplying 2 digit numbers is to multiply vertically as shown in the first figure. We first use the digits ones digit of the multiplicand (12) and distribute to the ones and tens digit of the multiplier (34) shown in Step 1 and Step 2 and write the products. Then, we multiply the tens digit […]

# Multiplying by 9 Tricks and Shortcuts

# Mental Math Shortcut on Multiplying by 5

Mental math shortcut is one of the topics that we will be discussing in this blog. After discussing multiplication by 11 and squaring numbers ending in 5, let us discuss about the shortcut of multiplying by 5. The Mental Math Calculation Example 1: How do you multiply 28 × 5? Instead of multiplying 28 by 5, (1) Multiply 28 by […]

# Squaring Numbers Ending in 5

The Trick After discussing multiplication of numbers by 11, let us discuss another math shortcut method which is very popular among kids and teenagers. This is squaring numbers ending in 5. For kids, you can read the first portion of this post if you want to learn the trick, and read further if you want to […]