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Multiplication / Division

 

 

Multiplication

 

 

Learning to Multiply by 1s

Learning the 1s
 1 x 0 = 0  1 x 7 = 7
 1 x 1 = 1  1 x 8 = 8
 1 x 2 = 2  1 x 9 = 9
 1 x 3 = 3  1 x 10 = 10
 1 x 4 = 4  1 x 11 = 11
 1 x 5 = 5  1 x 12 = 12
 1 x 6 = 6  

 

A fun way to get used to the 1s times table is to count ...

0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12

 

Be sure to practice counting backwards !

12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0

 

REMEMBER:  Any number times 1 equals the number (4 x 1 = 4, 104 x 1 = 104)

Give the answers, reading across the graph
 One 5 = ?  1 x 5 = ?
 One 0 = ?  1 x 0 = ?
 One 3 = ?  1 x 3 = ?
 One 2 = ?  1 x 2 = ?
 One 1 = ?  1 x 1 = ?
 One 6 = ?  1 x 6 = ?
 One 4 = ?   1 x 4 = ?

Give the answers, reading across the graph
 One 8 = ?  1 x 8 = ?
 One 10 = ?  1 x 10 = ?
 One 7 = ?  1 x 7 = ?
 One 11 = ?  1 x 11 = ?
 One 9 = ?  1 x 9 = ?
 One 12 = ?  1 x 12 = ?

See if you can give the products to the following multiplication problems quickly:

 7 x 1 = ?  2 x 1 = ?  4 x 1 = ?
 1 x 8 = ?  1 x 9 = ?  1 x 12 = ?
 10 x 1 = ?  1 x 1 = ?  6 x 1 = ?
 0 x 1 = ?  1 x 11 = ?  8 x 1 = ?
 1 x 3 = ?  1 x 5 = ?  1 x 500 = ?

How many 1¢ tops can I buy for 12¢?

How many 1¢ violets can you buy for 6¢?

How many 1¢ rubber bands can you buy for 11¢?

 

Learning to Divide by 1s

The sign ÷ means divide.  When we see the ÷ sign we say divided by.  Division is a type of reversed multiplication. It just takes a wee bit of practice. (NOTE: 0 divided by any number equals 0)

Be sure to practice counting as it helps us to divide quickly ...

0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12

Be sure to practice counting backwards !

12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0

 1 ÷ 0 = 0  7 ÷ 1 = 7
 1 ÷ 1 = 1  8 ÷ 1 = 8
 2 ÷ 1 = 2  9 ÷ 1 = 9
 3 ÷ 1 = 3  10 ÷ 1 = 10
 4 ÷ 1 = 4  11 ÷ 1 = 11
 5 ÷ 1 = 5  12 ÷ 1 = 12
 6 ÷ 1 = 6  

 How many 1s in 6?  6 = 1 x ?  6 ÷ 1 = ?
 How many 1s in 10?  10 = 1 x ?  10 ÷ 1 = ?
 How many 1s in 8?  8 = 1 x ?  8 ÷ 1 = ?
 How many 1s in 12?  12 = 1 x ?  12 ÷ 1 = ?
 How many 1s in 1?  1 = 1 x ?  1 ÷ 1 = ?
 How many 1s in 11?  11 = 1 x ?  11 ÷ 1 = ?
 How many 1s in 7?  7 = 1 x ?  7 ÷ 1 = ?
 How many 1s in 2?  2 = 1 x ?  2 ÷ 1 = ?
 How many 1s in 9?  9 = 1 x ?   9 ÷ 1 = ?
 How many 1s in 3?  3 = 1 x ?  3 ÷ 1 = ?
 How many 1s in 4?  4 = 1 x ?  4 ÷ 1 = ?
 How many 1s in 5? 5 = 1 x ?  5 ÷ 1 = ?

Practice Problems

Give the answers, reading across the graph
 1 x ? = 6  6 ÷ 1 = ?  1 x 2 = ?  2 ÷ 1 = ?
 1 x ? = 4  4 ÷ 1 = ?  1 x ? = 10  10 ÷ 1 = ?
 14 = ? x 1  14 ÷ 1 = ?  8 = 1 x ?  8 ÷ 1 = ?
 1 x 0 = ?  0 ÷ 1 = ?  8 = 8 x ?  8 ÷ 8 = ?
 9 x 1 = ?  9 ÷ 1 = ?  1 x ? = 11  11 ÷ 1 = ?
 10 = 1 x ?  10 ÷ 1 = ?  1 x ? = 12  12 ÷ 1 = ?
 1 x 12 = ?  12 ÷ 1 = ?  7 x ? = 7  7 ÷ 1 = ?

 

1s Fact Family

0, 1
 1 x 0 = 0  1 ÷ 0 = 0
 0 x 1 = 0  0 ÷ 1 = 0

1
 1 x 1 = 1  1 ÷ 1 = 1

1,2
 1 x 2 = 2  2 ÷ 1 = 2
 2 x 1 = 2  2 ÷ 2 = 1

1,3
 1 x 3 = 3  3 ÷ 1 = 3
 3 x 1 = 3  3 ÷ 3 = 1

1,4
1 x 4 = 4   4 ÷ 1 = 4
 4 x 1 = 4  4 ÷ 4 = 1

1,5
 1 x 5 = 5  5 ÷ 1 = 5 
 5 x 5 = 5  5 ÷ 5 = 1

1,6
 1 x 6 = 6  6 ÷ 1 = 6
 6 x 1 = 6  6 ÷ 6 = 1

1,7
 1 x 7 = 7  7 ÷ 1 = 7
 7 x 1 = 7  7 ÷ 7 = 1

1,8
 1 x 8 = 8   8 ÷ 1 = 8
 8 x 1 = 8  8 ÷ 8 = 1

1,9
 1 x 9 = 9  9 ÷ 1 = 9
 9 x 1 = 9  9 ÷ 9 = 1

1,10
 1 x 10 = 10  10 ÷ 1 = 10 
 10 x 1 = 10  10 ÷ 10 = 1

1,11
 1 x 11 = 11  11 ÷ 1 = 11
 11 x 1 = 11  11 ÷ 11 = 1

1,12
 1 x 12 = 12  12 ÷ 1 = 12
 12 x 1 = 12  12 ÷ 12 = 1

What is ...
(Hint: Do multiplication first then the addition)
 2 x 1 + 1 ?  1 x 3 + 1 ?
 1 x 5 + 5 ?  1 x 7 + 1 ?
 1 x 9 + 1 ?  1 x 11 + 3 ?
 1 x 2 + 3 ?  1 x 6 + 3 ?
 1 x 10 + 4 ?  1 x 8 + 3 ?
 1 x 4 + 1 ?  1 x 0 + 5 ?
 1 x 12 + 1 ?  1 x 1 + 6 ?

 

Before you go on to the 10s times tables, be sure to ...

 

1)  Review your skip counting for 1, 2 and 5
... frontwards and backwards !

2) Have your daddy, mama, sister, or brother flash
you the 1s, 2s & 5s multiplication/division facts.
See how fast and accurate you can be !

3) complete the Multiplication Chart for what
you already know !

 


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