• Count the number of digits to the right of the decimal in each one
• Add both numbers (say it is 4)
• Carry the multiplication as if the decimal (coma) does not exist
• Locate the decimal (coma) 4 places from the right
• Remember the compensation theory mentioned before

• Multiply 4.8 by 1.1
• Total number of digits to the right of the decimal in each number = 1+1=2
• Multiplication without the decimal is 48x11=528
• Place the decimal 2 places to from the right extreme
• The result is 5.28

• Multiply  2.435 x12.2
• Total number of digits to the right of the decimal in each number = 3+1=4
• Multiplication without the decimal is 2435x122=297070
• Place the decimal 4 places from the extreme right
• The result is 29.7070

• Multiply 2.4 x .2
• Total number of digits to the right of the decimal in each number = 1+1=2
• Multiplication without the decimal is 24x2=48
• Place the decimal 2 places to from the right extreme
• The result is 0.48

• Multiply 0.4 x 0.2
• Total number of digits to the right of the decimal in each number = 1+1=2
• Multiplication without the decimal is 4x2=8
• Place the decimal 2 places to from the right extreme ....
• compensate the difference with zeros
• The result is 0.08

•  Multiplication of any 2 digits number by 11
• Helping Your Child at Home to explore Numbers & Fractions
• Multiplication of any 3,4,5, ....etc digits number by 11
• Vertical Multiplication
• Verify your Multiplication's
• Multiplying any Number (one digit) by 9
• Multiplying any 2 digits number that ends with 5 by itself
• Can a number be divided by 2, 3, 4, 5, 9 or 10 
• Units Conversion
• Definition & Understanding of Decimal
• Multiplication and division of a decimal by 10,100, 1000, .....etc
• Multiplication of decimal numbers by each others
• Division of decimal numbers by each others
• Signs, Definition, Adding, Multiplying & Dividing numbers with signs

Children's House of -Math

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