Subtract from Multiples of Ten (246)

Lesson Plan

Subtracting Single Digits

Standards

Printable Aids

Teaching Notes

Emphasize regrouping a ten into ten ones. Use base ten blocks or a number line to visualize the subtraction process, especially for students new to borrowing.

Vocabulary

Multiple of ten: Numbers like 10, 20, 30, ending in zero.

Borrow: Take from a higher place value.

Common Mistakes

• Subtracting the smaller digit from the larger digit in the ones place (e.g., 30 - 7, student does 7-0=7 and 3-0=3, answer 37).
• Forgetting to adjust the tens place after regrouping.

Differentiation

Discussion Questions

• How is subtracting 7 from 30 different from subtracting 7 from 9?
• When we subtract from a 'whole ten' number, what happens in the ones place? What happens in the tens place?
• Can you think of a real-life situation where you would need to subtract from a whole ten?

Extension Activities

• Use a number line.
• Count back by tens and ones.
• Draw it out.

Parent Tip

Use a clock face to show how subtracting from a multiple of ten works.

Skill Cluster

Number Sense & Operations: Subtraction

Grade Level

2-3

Skills Practiced

Prerequisites

• Basic Subtraction Facts
• Place Value
• Understanding Place Value (Tens and Ones)
• Subtracting within 20
• Fact Fluency to 10

Next Steps

• Two-Digit Subtraction
• Regrouping Strategies
• Subtracting 2-Digit Numbers (with regrouping)
• Mental Math: Subtracting Multiples of 10
• Subtracting 2-Digit Numbers (Regrouping)
• Subtracting from Multiples of 100
• Mental Subtraction: Take Away 10