Estimating Division with Decimals

This video tutorial teaches how to divide decimals by other decimals using estimation. It covers three examples: 4598 divided by 0.3, 4598 divided by 0.03, and 5.94 divided by 0.7. The tutorial emphasizes estimating the dividend to a multiple of the divisor and breaking down the division process into simpler steps. It also explains the importance of moving the decimal point to make the divisor a whole number. The video concludes with a practice problem for students to solve independently.

What is the first step in dividing a decimal by another decimal?

• Estimate the dividend to a multiple of the divisor.

• Convert the divisor to a fraction.

• Estimate the divisor.

• Multiply both numbers by 10.

When estimating 4598 to divide by 0.3, what number is it estimated to?

• 46

• 50

• 45

• 40

How is 0.3 split up for easier division?

• 0.4 * 0.75

• 0.5 * 0.6

• 0.2 * 1.5

• 0.1 * 3

What is the result of 45 divided by 0.1?

• 0.45

• 450

• 4.5

• 45

What is the next step after dividing 450 by 0.1?

• Add 3

• Subtract 3

• Divide by 3

• Multiply by 3

When estimating 4598 to divide by 0.03, what number is it estimated to?

• 4.5

• 0.45

• 45

• 450

What rule helps determine if a number is divisible by three?

• If the number is even.

• If the sum of its digits is divisible by three.

• If it ends in zero.

• If it is a prime number.

How many decimal places do you move when dividing by 0.01?

• Two

• One

• Three

• None

What is the equivalent fraction process used for?

• To convert decimals to fractions.

• To simplify the dividend.

• To find the greatest common divisor.

• To make the divisor a whole number.

What is the estimated value of 5.94 when dividing by 0.7?

• 59

• 60

• 63

• 6.3