## Topic: Subtraction with regrouping

### Objectives & Outcomes

• Students will be able to subtract two and three digit numbers with regrouping.

### Materials

• Pencils
• Paper
• Calculator (optional)

### Warm-up

• Review the concept of subtraction with the students. Ask them to explain how to subtract with numbers, such as 37 - 19.
• Have the students practice subtracting with numbers at their

### Direct Instruction

• Explain to the students that when we subtract a larger number

### from a smaller number, we can sometimes have to regroup.

• Show the students an example of subtracting with regrouping,

### such as 49 - 25.

• Have the students work through the problem with you, writing

### Guided Practice

• Provide the students with more problems to solve with

### direct instruction.

• Check the students' work for accuracy.

### Independent Practice

• Provide the students with a set of problems to solve without

### regrouping.

• Encourage the students to use their strategies to solve the problems

### without direct assistance.

• Check the students' work for accuracy.

### Closure

• Ask the students to share their favorite parts of the lesson and

### why.

• Review the steps for solving problems with regrouping.
• Ask the students to share any questions they have about the

### Assessment

• Observe the students during independent practice and provide

### feedback on their work.

• Administer a quiz to assess the students' understanding of the