First Term Lesson Note for Week Nine

Class : Primary Three

Subject : Mathematics

Topic : Subtraction of Whole Numbers

Duration : 80 Minutes

Period : Double Period

Learning Objectives : By the end of the lesson learners will be able to :

i. Subtract numbers without renaming

ii. Subtract numbers with renaming

iii. Solve some problems on subtraction of Numbers

Instructional Material : Chart showing subtraction of numbers with and without renaming.

Reference Book : New Methods Mathematics for Primary Schools, Book 3.

previous Knowledge :

Content :

Subtraction of Whole Numbers

Subtraction simply means take away, minus, difference, Less, decrease or remove

Subtraction of Numbers in expanded form:

5 9 7 = 5 0 0 + 9 0 + 7

– 3 4 6 = 3 0 0 + 4 0 + 6

$$__________ ____________________

2 5 1 = 2 0 0 + 5 0 + 1 = 2 5 1

__________ ___________________ _________

1. 6784 – 3251

2. What iis the difference 345 and 500?

3. Take away 2869 from 7594

4. What is 576 less 100?

5. 7 8 5 – 3 9 2

6. In a school, there are 356 pupils. If the boys are 158. How many girls are there in the school?

7. Out of 500 apples in a basket. 189 were eaten. How many apples are left in the basket?

8. By how much is 270 greater than 123?