Multiplying Decimals Concepts

This video tutorial from MooMooMath and Science explains how to multiply decimals in three steps. First, count the numbers to the right of the decimal. Second, multiply the numbers as if there are no decimals. Finally, place the decimal in the product by counting from the right. The video includes three examples to illustrate the process and concludes with a reminder to be kind.

What is the first step in multiplying decimals?

• Subtract the numbers

• Count the numbers to the right of the decimal

• Add the numbers first

• Multiply the numbers directly

When multiplying decimals, how should you initially treat the numbers?

• As if they are whole numbers

• As if they are fractions

• As if they are negative numbers

• As if they are percentages

After multiplying the numbers, what is the next step?

• Add a zero to the result

• Divide the result by 10

• Multiply the result by 2

• Place the decimal point based on the initial count

What is the result of placing the decimal in the product of 8 and 41 times 5?

• 4.205

• 42.05

• 420.5

• 4205

In the second example, how many numbers were to the right of the decimal initially?

• Four

• Three

• Two

• One

What is the product of 213 and 38 when ignoring the decimals?

• 8124

• 8114

• 8104

• 8094

In the final example, how many decimal places were counted initially?

• Two

• Three

• Five

• Four

What is the product of 8 and 7 in the final example?

• 56

• 54

• 57

• 55

What is the final step after obtaining the product in decimal multiplication?

• Add the numbers again

• Ensure the decimal point is correctly placed

• Multiply by 10

• Subtract the numbers

What is the key takeaway from the video?

• Decimals are placed based on initial count

• Decimals are subtracted

• Decimals are ignored in multiplication

• Decimals are always added