Learn the Multiplication Facts - Times Tables
Lesson 12 - Learning the 9's (Method 2)
  
  • The NINE multiplication facts (Method 2)
    • This is the one less = nine method
      • Subtract one from the number you are multiplying by.  9 x 5  (One less than 5 is 4) 
      • The first number in the answer is 4.  The two numbers that make up the answer will equal 9.  So 4 + __ = 9  (5)
      • The last number in the answer is 5.
      • 9 x 5 = 45
        • One less than 5 is 4 (45)
        • The answer adds up to nine. 4 + 5 = 9
    • Here is another example
      • 9 x 8
      • One less than 8 is 7. So the first number in the answer is 7.
      • 7 + 2 equals 9.  So the second number in the answer is 2.
 
  • Use the chart below to quiz yourself. 
    Look at the fact below and think of the answer.  Check it by hovering the mouse over the problem.
       
  0 1 2 3 4 5 6 7 8 9
0                  
1                  
2                  
3                  
4                  
5                  
6                  
7                  
8                  
9

Lesson 13
    

The Basics
   Lesson 1 (Repeated)
   Lesson 2 (Commutative)
Getting Started
   Lesson 3 (Zeros)
   Lesson 4 (Ones)
   Lesson 5 (Good News)
   Lesson 6 (Repeats)
   Lesson 7 (Tricks)
Easy Facts
   Lesson 8 (Twos)
   Lesson 9 (Fives 1)
   Lesson 10 (Fives 2)
The Nines
   Lesson 11 (Nines 1)
   Lesson 12 (Nines 2)
Other Tricks
   Lesson 13 (3x4 7x8)
    Lesson 14 (Fours)
   Lesson 15 (Rhymes)
   Lesson 16 (Final Six)
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