Multiplying Decimals Song for 5th Grade | How to Multiply by a Decimal Rap

The video tutorial covers multiplication of fractions and whole numbers, emphasizing the importance of place value. It introduces rounding as a method to verify the reasonableness of answers. Advanced multiplication techniques for decimals are demonstrated, along with strategies for correctly placing decimal points in products.

What is the result of multiplying 9/100 by 5 and 1/10?

• 15954

• 109

• 45

• 90

When multiplying 90/100 by 3 and 2/10, what is the sum of the products before considering place value?

• 4 and 18

• 6 and 27

• 3 and 2

• 4 4 9 2

How can you check the reasonableness of your answer when multiplying decimals?

• By adding the numbers

• By rounding to a simpler number

• By subtracting the numbers

• By dividing the numbers

What is a method to determine where the decimal point should be placed in a product?

• Subtract the decimal places of the factors

• Add the decimal places of the factors

• Count the number of decimal places in the factors and move left

• Count the number of decimal places in the product and move right

Why is it important to consider the reasonableness of an answer?

• To ensure the answer is within a reasonable range

• To confuse the students

• To avoid using decimals

• To make the answer look better