Mental | Math Kids Can't Resist!: Tips, Short-cut...

Take the first digit and multiply it by the "next" number up. 65 x 65 The end is 25 . The first digit is 6. The next number up is 7. Put them together: 4,225 . How to Make it "Irresistible"

If the middle sum is 10 or more (like 87 x 11), just carry the "1" to the first digit! 3. The "Doubling and Halving" Method Mental Math Kids Can't Resist!: Tips, Short-cut...

This is arguably the coolest-looking trick in mental math. It works for any two-digit number multiplied by 11. Take the first digit and multiply it by the "next" number up

This is how our brains naturally read, so it feels more intuitive than the "stacking" method. 5. Squaring Numbers Ending in 5 This one makes kids look like absolute geniuses. The Trick: To square a number like 25, 35, or 75: The answer always ends in 25. The next number up is 7