Estimating Quotients with Friendly Numbers

What is the main goal when using estimation in division problems?

• To find the exact quotient

• To avoid using friendly numbers

• To determine if the estimated quotient is reasonable

• To make the division more complex

Which number is considered a 'friendly' number in the estimation of 2419 divided by 3?

• 2600

• 2400

• 2300

• 2500

Why is the estimated quotient of 7500 for 2419 divided by 3 considered unreasonable?

• It is almost 10 times more than the estimated quotient of 800

• It is too close to the actual quotient

• It is less than the estimated quotient of 800

• It is exactly the same as the estimated quotient

What friendly number is used to estimate 435 divided by 5?

• 400

• 500

• 450

• 350

What is the estimated quotient for 435 divided by 5 using the friendly number 400?

• 75

• 85

• 80

• 90

What is the friendly number used to estimate 6202 divided by 2?

• 6500

• 6300

• 6200

• 6000

Why is the estimated quotient of 300 for 6202 divided by 2 considered unreasonable?

• It is exactly the same as the estimated quotient

• It is more than the estimated quotient of 3000

• It is one tenth of the estimated quotient of 3000

• It is too close to the actual quotient

What is the correct estimated quotient for 6202 divided by 2 using the friendly number 6000?

• 3100

• 3000

• 3200

• 3300

What is the purpose of using friendly numbers in estimation?

• To increase the complexity of the problem

• To avoid finding the exact answer

• To simplify calculations

• To make calculations more difficult

Which of the following is NOT a step in estimating a quotient?

• Choosing a friendly number

• Dividing the friendly number

• Checking the reasonableness of the result

• Finding the exact quotient