logo
g Text Version
Beauty & Self
Books & Music
Career
Computers
Education
Family
Food & Wine
Health & Fitness
Hobbies & Crafts
Home & Garden
Money
News & Politics
Relationships
Religion & Spirituality
Sports
Travel & Culture
TV & Movies

dailyclick
Bored? Games!
Nutrition
Postcards
Take a Quiz
Rate My Photo

new
European Travel
Action Movies
Bible Basics
Houseplants
Romance Movies
Creativity
Family Travel


dailyclick
All times in EST

Clairvoyance: 08:00 PM

Full Schedule
g
g Math Site

BellaOnline's Math Editor

g

Multiplication Tips - 2s, 4s, 8s


After the basic concepts of multiplication have been taught, here are some tips to learning and memorizing multiplication facts. Works well with older students.

****Remember the COMMUTATIVE PROPERTY – the order of the numbers does not change the answer. One fact learned means that two facts are actually learned.
Example: 4 x 5 = 20 and 5 x 4 = 20


2s ----------- “…seeing double” means to add the number to itself. For example,
2 X 7 = 14 is the same as 7 + 7 = 14. whenever you want to double a number, multiply by two and you are through.

4s ------- once you have mastered the 2’s. The 4’s are a breeze. How? Take the twos that you just learned and multiply the answer by 2 again. This process is the same as multiplying by four. Keep that thought in the back of your mind. Let’s calculate 4 X 6 . It can become cumbersome to think of four groups with six in each group. So, let’s try another approach.

4 x 6 =
Multiply 6 by (2 which is half of four) ------- 2 x 6 = 12
Double the answer, twelve ----------------------------- (12 + 12 = 24) or ( 12 X 2 = 24.)
Thus ----------------------------------------- 4 x 6 = 24.

Let’s try another example:
4 X 7 =
Multiply 7 by (2 which is half of four) ------- 2 x 7 = 14
Double the answer, fourteen ----------------------------- (14 + 14 = 28) or ( 14 X 2 = 28)
Thus -------------------------------------------- 4 x 7 = 28.


8s ---------Since four is half of eight, let’s use this pattern with the eight timetables.
This method requires you to know the four times tables. Instead of multiplying by 8, multiply by 4 (which is half of 8) and double the answer.

8 x 3 =
Multiply 3 by (4 which is half of 8) ------------- 4 x 3 = 12
Double the answer, 12 ------------------------- (12 + 12= 24) or (12 x 2 = 24)
Thus ----------------------------------------------- 8 x 3 = 24

Look at the products below. Do you notice any patterns?
8 x 1 = 08
8 x 2 = 16
8 x 3 = 24
8 x 4 = 32
8 x 5 = 40
8 x 6 = 48
8 x 7 = 56
8 x 8 = 64
8 x 9 = 72
8 x 10 = 80

Pattern – in the tens place: start from the top; numbers are in ascending order 0 – 4, repeats 4, and continues 5 – 8

Pattern – in the ones place: start from the bottom; skip counts by twos beginning with 0 -8; start over with zero continuing to count by twos.

Test strategy: If calculators are not allowed and you have not quite mastered the multiplication facts, write them on your test before you begin. Use the above pattern to verify they are correct. Patterns are found in several timetables. So, check out the other articles below.




Add Multiplication+Tips+%2D+2s%2C+4s%2C+8s to Twitter Add Multiplication+Tips+%2D+2s%2C+4s%2C+8s to Facebook Add Multiplication+Tips+%2D+2s%2C+4s%2C+8s to MySpace Add Multiplication+Tips+%2D+2s%2C+4s%2C+8s to Del.icio.us Digg Multiplication+Tips+%2D+2s%2C+4s%2C+8s Add Multiplication+Tips+%2D+2s%2C+4s%2C+8s to Yahoo My Web Add Multiplication+Tips+%2D+2s%2C+4s%2C+8s to Google Bookmarks Add Multiplication+Tips+%2D+2s%2C+4s%2C+8s to Stumbleupon Add Multiplication+Tips+%2D+2s%2C+4s%2C+8s to Reddit




Multiplication - Unique Timetable Patterns - 5s
Multiplication Facts - Nine Timetables
What is a Fact Family?
RSS
Related Articles
Editor's Picks Articles
Top Ten Articles
Previous Features
Site Map


For FREE email updates, subscribe to the Math Newsletter


Past Issues


print
Printer Friendly
bookmark
Bookmark
tell friend
Tell a Friend
forum
Forum
email
Email Editor


Content copyright © 2014 by Beverly Mackie. All rights reserved.
This content was written by Beverly Mackie. If you wish to use this content in any manner, you need written permission. Contact Beverly Mackie for details.

g


g features
Intro to Algebra Crossword Puzzle- 1

Math MOOC - Free Online Math Courses - Self-Paced

Interactive App for Student Engagement

Archives | Site Map

forum
Forum
email
Contact

Past Issues
memberscenter


vote
Poetry
Daily
Weekly
Monthly
Less than Monthly



BellaOnline on Facebook
g


| About BellaOnline | Privacy Policy | Advertising | Become an Editor |
Website copyright © 2014 Minerva WebWorks LLC. All rights reserved.


BellaOnline Editor