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Whole Numbers Multiplying Whole Numbers. Properties of Multiplication Commutative Property of Multiplication Multiplication Properties of 0 and 1 Associative.

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Presentation on theme: "Whole Numbers Multiplying Whole Numbers. Properties of Multiplication Commutative Property of Multiplication Multiplication Properties of 0 and 1 Associative."— Presentation transcript:

1 Whole Numbers Multiplying Whole Numbers

2 Properties of Multiplication Commutative Property of Multiplication Multiplication Properties of 0 and 1 Associative Property of Multiplication Multiplying by powers of 10

3 Multiplying Whole Numbers Multiplying Whole Numbers by Numbers with More than One Digit Carrying/Adding

4 Multiplying Whole Numbers Finding the Area of a Rectangle Recall Area = (length)(width) or A = l * w or A = lw

5 Whole Numbers Dividing Whole Numbers

6 Properties of Division Dividend  Divisor = quotient

7 Dividing Whole Numbers Division and zero

8 Dividing Whole Numbers Short Division Usually used to divide by a one-digit divisor Long Division Used when divisor has more than one digit

9 Dividing Whole Numbers Tests for divisibility A number is divisible by: 2 if its last digit is divisible by 2 3 if the sum of its digits is divisible by 3 4 if the number formed by its last two digits is divisible by 4 5 if its last digit is 0 or 5 6 if it is divisible by 2 and 3 9 if the sum of its digits is divisible by 9 10 if its last digit is 0

10 Dividing Whole Numbers Dividing Whole Numbers that End with Zeros Shortcut: When both the dividend and the divisor end with zeros drop the ending zeros in the divisor and drop the same number of zeros in the dividend.


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