Subtraction of two digit numbers with regrouping. Counting and writing skills :Numbers 470-510.

Lesson Plan: Subtraction of Two-Digit Numbers with Regrouping for Basic 2 Learners

Topic: Subtraction of two-digit numbers with regrouping 

Counting and Writing Skills: Numbers 470-510

Subject: Mathematics 

Class Group: Basic 2 

Subtraction means taking away. Sometimes, we cannot subtract the bottom number from the top number in the ones place.

When this happens, we borrow 1 ten from the tens place.

Examples:

1.     4 2

   -  1 8 = 24

    

     5 1

   -2 6 =25

    

       6 3

   -  2 9 = 34

    

       7 0

   -  4 5 = 25

   Word Problems

   1. Tunde has 62 sweets. He gives his friends 29 sweets.

   How many sweets are left?

   62 − 29 = 33 sweets

    

   2. There were 70 chairs in a hall. 48 chairs were used.

   How many chairs remain?

   70 − 48 = 22 chairs

Note to Learners: When subtracting two-digit numbers with regrouping, remember to break down the numbers into tens, and ones. Then, subtract each part separately, regrouping when necessary. It's like solving a puzzle! With practice, you'll become more comfortable and confident in your math skills.

CLAS  ACTIVITY: Try solving these problems on your own:

• 52 − 19 = ______
• 61 − 38 = ______
• 73 − 46 = ______
• 80 − 54 = ______
• 94 − 68 = ______