If your Palo Alto child’s multiplication is strong, you can start teaching them these math tricks.
Math Tricks in Palo Alto
Trick #1: Squaring a 2 Digit Number Ending in 5
- Multiply the 1st digit by itself plus 1
- Put 25 at the end
Step 1: 3 * (3 + 1) = 3 * 4= 12
Step 2: 1225
Trick #2: Multiplying by 5
- Divide the number by 2
- If the result is a whole number, add a zero to the end, otherwise, ignore the remainder and add a 5 to the end
Ex: 382 * 5
Step 1: 382 / 2 = 191
Step 2: 1910
Trick #3: Subtracting from 1000
- Subtract all but the last number from 9
- Subtract the last number from 10
Ex: 1000 – 423
Step 1: 9 – 4 = 5
Step 2: 9 – 2= 7
Step 3: 10 – 3 = 7
These 3 tricks will be very useful for you Palo Alto child to use. Check out some more math tricks from this website!
Here are some practice problems you can do using these tricks
- 876 * 5
- 1000 – 824
Don’t peak! Here are the answers:
For more information about Mathnasium of Palo Alto-Menlo Park and other unique word problems, visit our website at http://www.mathnasium.com/paloalto-menlopark
Number tricks and Math
Although some children might be reluctant to believe it, math can be fun! There are many number tricks that seem unusual, but are actually fun and surprising! For example, you can figure out someone’s exact age by asking them to choose a number between 2 and 9. Here are the steps!
- Choose a number between 2 and 9
- Multiply your number by 2
- Add 5 to your number
- Multiply the number by 50
- If you had your birthday already this year, add 1,759 to your total. If you haven’t have your birthday this year, add 1,762
- Subtract the year you were born from the number ( you should now have a three digit number)
- The first digit should be the number you chose, and the next two digits should be your age
There are many other fun tricks like this. Next time you want to trick you child, try this fun math trick! This guy teaches how to do this trick with playing cards: http://www.youtube.com/watch?v=WhH8WMbxPEU.
You can also do more fun tricks with your child through this website http://www.cybraryman.com/numbertricks.html.
These fun number games are not only fun and engaging, but also a good way for your child to practice his or her math skills
Learn more about Math Tutoring and Mathnasium of Palo Alto-Menlo Park (and find more fun problems) — http://www.mathnasium.com/paloalto-menlopark