Multiply 2 Numbers with 2 Decimals
Multiplying a decimal number by another decimal number (5.39 x 4.3) requires
a strong understanding of multiplication skills, specifically with multiple
digit numbers.
Tutorial
The following is a step-by-step example of a decimal number multiplied with
another decimal number.
Solve: 5.39 x 4.3 = ?
Step 1: Rewrite horizontal problems vertically.
Step 2: Multiply 539 by 3. Write the product (1617) below the line.
Step 3: Place a 0 below the product of Step 2 in the ones position. Multiply 539
by 4. Write the product (2156) to the left of the 0. Add the two products (1617
+ 21560) and write the sum (23177) below the line.
Step 4: Place the decimal point. Each place to the right of the decimal point is
a decimal place. Count the number of decimal places in the factors (3). Place
the decimal point in that position in the product. The number of decimal places
in the product equals the sum of the decimal places in the factors.
The correct answer is 5.39 x 4.3 = 23.177
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Revised: January 19, 2003
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