Regrouping in Addition Problems

The video tutorial explains how to use regrouping to solve addition problems. It uses the example of Jason's family driving from Okala to Miami, covering 139 miles in the morning and 187 miles in the afternoon, to demonstrate the process. The tutorial shows how to calculate the total distance using partial sums and regrouping, ensuring the sum is reasonable. It explains regrouping ones and tens to simplify the addition process, resulting in a total of 326 miles driven.

What is the purpose of regrouping in addition problems?

• To divide numbers equally

• To make subtraction easier

• To simplify multiplication

• To solve addition problems more efficiently

How many miles did Jason's family drive in the morning?

• 139 miles

• 187 miles

• 326 miles

• 100 miles

What is the estimated total distance driven by Jason's family?

• 200 miles

• 300 miles

• 400 miles

• 500 miles

Why is it important to estimate the sum before calculating the exact total?

• To check if the sum is reasonable

• To practice multiplication

• To make the problem more complex

• To avoid using a calculator

What is one way to record partial sums?

• By using a calculator

• By writing down each step of the addition

• By guessing the total

• By subtracting the numbers

What is the exact total distance driven by Jason's family?

• 139 miles

• 187 miles

• 326 miles

• 300 miles

What does regrouping ones involve?

• Combining tens into hundreds

• Naming a whole number in a different way

• Dividing numbers into smaller parts

• Subtracting ones from tens

How many ones are regrouped into a ten?

• 5 ones

• 15 ones

• 20 ones

• 10 ones

What is the result of regrouping 16 ones?

• 2 tens and 5 ones

• 1 ten and 6 ones

• 2 tens and 6 ones

• 1 ten and 5 ones

What does regrouping tens involve?

• Subtracting tens from hundreds

• Dividing tens into ones

• Naming tens in a different way

• Combining hundreds into thousands