Multiply

Multiplying Decimals 1

Multiplying Decimals 2

Multiplying Decimals by 10, 100, 1000

To multiply a decimal number by a whole number

Ignore the decimal point and multiply the digits. Place the decimal point in the answer so that it has the same number of decimal places as the number being multiplied

Ex:   2.22 X 43 = 95.46

MultDW

 

 

 

 

 

 

 

DE34    Multiply_Decimals _1

DE35    Multiply_Decimals_2

DE36    Multiply_Decimal_x_Whole

DE53      Multiply_Decimals _WP

 

Multiply Decimals by powers of ten

0.5 x 10 = 5

0.5 x 100 = 50

0.5 x 1000 = 500

0.5 x 10000 = 5000

Hint: Just move the decimal point one place to the right for each zero you see after the 1

To multiply a decimal by a power of ten, just move the decimal point to the right as many times as there are 0’s.   (Add 0’s if there are not enough digits).


To multiply a decimal number by a decimal number

Ignore the decimal points and multiply the digits;   count the total number of decimal places in both decimal numbers being multiplied; and place a decimal point in the answer so that it has the same number of decimal places as the total number of decimal places in the two numbers being multiplied

PT08      Multiply a decimal number by a power of ten 1

PT09      Multiply a decimal number by a power of ten 2

PT10      Multiply a decimal number by a power of ten 3

PT11      Multiply a decimal number by a power of ten 4

PT12      Multiply a decimal number by a power of ten 5

PT13      Multiply a decimal number by a power of ten 6

 

Multiply Decimals Word Problems

Math_at_Dinner

Multiply and Divide Decimals Help