Solving Problems with Regrouping

This video tutorial covers subtraction of two-digit numbers with and without regrouping. It begins with an introduction to the learning objective, followed by examples using pennies and puzzle pieces to demonstrate the concept. The tutorial concludes with a practice problem involving bug stickers to reinforce understanding.

What is the main focus of this lesson?

• Division of two-digit numbers

• Multiplication of two-digit numbers

• Subtraction of two-digit numbers with and without regrouping

• Addition of two-digit numbers

How many pennies does Elena have after giving some to Mark?

• 28 pennies

• 30 pennies

• 32 pennies

• 26 pennies

What is the first step in solving Elena's penny problem?

• Add more pennies

• Subtract the tens first

• Draw the pennies she starts with

• Count the pennies

What is the final step in solving Elena's penny problem?

• Subtract the ones

• Count the remaining pennies

• Add the ones

• Subtract the tens

How many puzzle pieces has Theo not used?

• 40 pieces

• 50 pieces

• 44 pieces

• 46 pieces

What is the regrouped value of 15 ones in Theo's puzzle problem?

• 5 ones

• 10 ones

• 15 ones

• 9 ones

What is the regrouped value of 10 in Theo's puzzle problem?

• 10 ones

• 15 ones

• 1 ten

• 5 ones

How many more bug stickers does Cindy have than Gabe?

• 16 more stickers

• 14 more stickers

• 12 more stickers

• 10 more stickers

What is the regrouped value of 31 in Cindy's sticker problem?

• 3 tens and 11 ones

• 2 tens and 11 ones

• 3 tens and 1 one

• 1 ten and 21 ones

What is the first step in solving Cindy's sticker problem?

• Count the stickers

• Add the stickers

• Subtract the ones first

• Regroup the tens