 # Multiplication Repeated Addition Created by Tonya Troyer.

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Multiplication Repeated Addition Created by Tonya Troyer

FactorsProduct Multiples 6 x 7 = 42 Answer to a multiplication problem The numbers that you multiply 1x10=10 10x1=10 2x5=10 5x2=10 So, 10 is a multiple of 1, 2, 5, 10 The multiple must be a product.

Equal Groups Arrays 3 x 4 = 12 3 groups of 4 equals 12 3 x 4 = 12 3 rows of 4 equals 12 4 8 12

2 Repeated addition Skip counting Doubles a number Twice as many

5 Repeated addition Skip counting Ends in a 5 or 0 Clock example: When the minute hand is on the 2, it stands of 10 minutes. (5 X 2 = 10) 5 10 15 20 30 25 35 40 45 50 55 60

9 Repeated addition Skip counting Example: 3 x 9 = 27 The ten’s digit in the product is one less than the other factor. (2 is 1 less than 3) The sum of the two digits in the product always equal 9. (2+7=9)

09 18 27 36 45 54 63 72 81 90 1.List 0 – 9 vertically 2.List 9 – 0 vertically along side it. 9

Hands example for 6 x 9 = 54 : 1)Start counting from the left. Count to the 6 th finger and fold it down. That now separates the tens and ones place value. 2)So, to the left of the folded finger is 5 tens. To the right is 4 ones. Folded finger 10 20 30 40 50 51 52 53 54 9

Zero times anything is always zero. (He’s like a king. Everyone must be like him.) 0

When you look in the mirror you see your reflection. So whatever you multiply one by will also be the product. Example: 7 x 1 =7 9 x 1 = 9 1 It’s like looking in a mirror.

10 Repeated addition Skip counting Always ends in a 0 Combine the idea of multiplying by 1 and 0 10 X 5 50 1)Ones place: 5 x 0 = 0 2)Tens place: 5 x 1 = 5

11 Repeated addition Skip counting It’s like looking in a double mirror. You see two copies of yourself. Copy the other factor twice. 11 X 8 88

12 Repeated addition Skip counting Always ends in and even number Combine the idea of multiplying by 1 and 2 12 X 6 72 1)Ones place: 6 x 2 = 12 2)Tens place: 6 x 1 = 6 3) 6 +1 = 7 +1

3 Repeated addition Skip counting -Break it apart into a 2 and a 1 Example: 3 x 7 = 21 Break it apart (Break the 3 into a 2 & a 1) Think about 2 x 7 = 14 and 1 x 7 = 7. Then put them together (14 + 7 = 21) 0 3 6 9 12 15

4 Repeated addition Skip counting Double your doubles Break apart Example: 6 x 4 = 24 Break it apart (break the 4 into 2 twos) Think about 6x2=12 and 6x2=12. Then put them together (12 + 12 = 24). 0 4 8 12 15

6 Repeated addition Skip counting Double your threes. Break apart -Break the 6 into a 5 and a 1 Example: 6 x 7 = 42 Think about 5x7=35 and 1x7=7. Then put them together (35 + 7 = 42).

7 Repeated addition Skip counting Break apart Break the 7 into a 5 and a 2 Example: 7 x 3 = 21 Think about 5x3=15 and 2x3=6. Then put them together (15 + 6 = 21).

8 Repeated addition Skip counting Double your four times tables. Example:8 x 6 = 48 Break it apart (break the 8 into 2 fours) Think about 4x6=24 and 4x6=24. Then put them together (24 + 24 = 48)