2.2
Operating With Multi-Digit Decimals
July 9, 2025
Maryam Syed
1
Min Read
AI Summary
Multiplying multi-digit decimals involves ignoring the decimal points at first, multiplying the numbers as whole numbers, and then placing the decimal in the final answer based on the total number of decimal places in the original numbers. For example, 3.4 × 2.5 becomes 34 × 25 = 850, and placing the decimal two places from the right gives 8.50.
Multiplying Multi-Digit Decimals?
Multiplying multi-digit decimals means finding the product when two decimal numbers with more than one digit are multiplied together. In simpler words, it is multiplying numbers that have decimals in them.
Ignore, Multiply, Place Method
Ignore the decimals first and just multiply the numbers as if they are whole numbers.
Multiply the numbers normally.
Place the decimal point in your final answer. Count the total number of decimal places in both original numbers and place it in the product from the right.
Example
3.4 x 2.5
Ignore the decimals and multiply 34 x 25 = 850
Count the total decimal places in the original numbers. 3.4 has 1 decimal place, 2.5 has 1 decimal place so, total is 2 decimal places.
Place the decimal point in your answer. Move it 2 places from the right in 850. 850 -> 8.50
So, 3.4 x 2.5 = 8.50