1. Multiplying and Dividing Decimals
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2. Multiplying Decimals
Step 1: Line up the numbers as if there were no decimals
DO NOT add “0” as place holders
Step 2: multiply as if you had whole numbers
Step 3: count the number of decimal places in each number
Step 4: the total will be how many decimal places are in your answer

3. Multiplying Decimals 4.07 x 3.1
Step 1:Line up the numbers as if there were no decimals
407 +
12 210
Step 2: multiply as if you had whole numbers
12 617

4. Multiplying Decimal . 4.07 2 Decimal places
Step 3: count the number of decimal places in each number. x
3.1
+ 1 Decimal places
407 +
12 210 .
12 617
3 Decimal places
Step 4: the total will be how many decimal places are in your answer.

5. Dividing Decimals
Rule 1: the divisor may NEVER be a decimal. It must be a whole number.
Rule 2: if you move the decimal in the divisor (outside number), you MUST move the decimal in the dividend (inside number) the SAME number of places.
Rule 3: after moving the decimal in the dividend, shift the decimal UP into your answer, immediately.

6. Dividing Decimals . . . Rule 1: the divisor may NEVER be a decimal 2 95
Rule 2: If you move the decimal in the divisor (outside number), you MUST move the decimal in the dividend (inside number) the SAME number of places.
2 2 .
6 4 . 9
-4 4
2 0
-1 98 11
-110
Rule 3: After moving the decimal in the dividend, shift the decimal UP into your answer, immediately.