Addition and Subtraction of Coins and the Naira Notes without regrouping Mathematics Third Term Lesson Notes Week 5
Mathematics Second Term Primary 1
Subject : Mathematics
Term : Second Term
Week : 10
Class : Basic 1 / Primary 1 / Grade 1
Topic :
Addition and Subtraction of Money
Addition and Subtraction of Coins and the Naira Notes without regrouping Mathematics Third Term Lesson Notes Week 5
Previous Knowledge : The pupils have been taught
in their previous lesson
Reference Books :
- MAN Mathematics Book 1
- Understanding Mathematics Book 1
- New Method Mathematics Book 1
- Learn Africa Mathematics Book 1
Instructional Materials
- Flash card
- Chart contains buying and selling transaction
Behavioural Objectives
By the end of the lesson, the learners will be able to
- Add and subtract Nigerian coins with different values not exceeding 25k
- Add and subtract Nigerian notes up to ₦50
Content
Questions on Addition of Money
Converting from Kobo to Naira.
The money we spend in Nigeria is called ————– and ————— ( a. Naira and Kobo b.dollar c.pounds.)
https://www.liveworksheets.com/ce1211783de
Week 5 Lesson Notes: Addition and Subtraction of Coins and Naira Notes without Regrouping
Objective: By the end of this lesson, you will be able to add and subtract coins and naira notes without regrouping.
Introduction:
Good morning, class! Today, we are going to continue our exploration of addition and subtraction, but this time, we will focus on coins and naira notes. We will learn how to add and subtract them without regrouping. Are you ready? Let’s dive in!
1. Adding Coins:
Let’s start with adding coins. Remember, coins are used for smaller amounts of money. For example, we have the 50 kobo coin, 1 naira coin, and 2 naira coin. When we add coins, we simply count the value of each coin and find the total.
Example 1:
If we have 50 kobo + 1 naira + 1 naira, we can add them together like this:
0.50 kobo + 1.00 naira + 1.00 naira = 2.50 naira
So, the total amount is 2.50 naira.
Example 2:
Let’s try another one. If we have 2 naira + 2 naira + 2 naira, we add them like this:
2.00 naira + 2.00 naira + 2.00 naira = 6.00 naira
So, the total amount is 6.00 naira.
Remember, when adding coins, we always keep track of the decimal point and the units (kobo or naira) to ensure accuracy.
2. Subtracting Coins:
Now, let’s move on to subtracting coins. We use subtraction when we want to find the difference between two amounts of money.
Example 1:
If we have 5 naira – 1 naira – 2 naira, we can subtract them like this:
5.00 naira – 1.00 naira – 2.00 naira = 2.00 naira
So, the difference is 2.00 naira.
Example 2:
Let’s try another one. If we have 3 naira – 1 naira – 1 naira, we subtract them like this:
3.00 naira – 1.00 naira – 1.00 naira = 1.00 naira
So, the difference is 1.00 naira.
Remember, just like in addition, we always keep track of the decimal point and the units (kobo or naira) while subtracting coins.
3. Practice Exercises:
Now, it’s time for some practice exercises. I will give you a few problems to solve on your own, and then we’ll check the answers together.
Exercise 1: Add the following coins – 50 kobo + 50 kobo + 50 kobo.
Exercise 2: Subtract the following coins – 2 naira – 50 kobo – 50 kobo.
Take a few minutes to solve these problems on your own. Raise your hand when you’re ready, and I’ll come around to check your answers.
4. Conclusion:
Well done, everyone! Today, we learned how to add and subtract coins and naira notes without regrouping. Remember, when adding coins, we count the value of each coin and find the total. When subtracting coins, we find the difference between two amounts of money. Keep practicing, and soon you’ll become experts at working with money. Great job, class!
If you have any questions or need further clarification, feel free to ask.
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Presentation :
The topic is presented step by step
Step 1 :The class revises the previous topic
Step 2 : The class teacher introduces the new topic which is counting, reading and identification of Numbers from one to five
Step 3 : Allow learners to give their own ideas and suggestions and corrects them when the needs arise
Evaluation
Mention these objects that can be used to measure capacity
- Fill in the blank: 50 kobo + 50 kobo + 50 kobo = ________. a) ₦1.50 b) ₦1.00 c) ₦0.50
- Fill in the blank: ₦1 + ₦2 + ₦2 = ________. a) ₦2.00 b) ₦4.00 c) ₦5.00
- Fill in the blank: ₦2 + ₦2 – ₦1 = ________. a) ₦3.00 b) ₦2.00 c) ₦1.00
- Fill in the blank: ₦5 – ₦2 – ₦1 = ________. a) ₦1.00 b) ₦3.00 c) ₦5.00
- Fill in the blank: 50 kobo + ₦1 + ₦1 = ________. a) ₦2.50 b) ₦3.50 c) ₦4.50
- Fill in the blank: ₦3 – ₦1 + ₦1 = ________. a) ₦1.00 b) ₦3.00 c) ₦4.00
- Fill in the blank: ₦2 + 50 kobo – 50 kobo = ________. a) ₦2.50 b) ₦1.50 c) ₦2.00
- Fill in the blank: ₦3 – ₦1 – ₦1 = ________. a) ₦2.00 b) ₦1.00 c) ₦4.00
- Fill in the blank: 50 kobo + 50 kobo – 50 kobo = ________. a) ₦0.50 b) ₦1.00 c) ₦0.00
- Fill in the blank: ₦2 + ₦2 + ₦2 – ₦1 = ________. a) ₦5.00 b) ₦4.00 c) ₦3.00
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Conclusion
The class teacher goes round to access, read, marks and does the necessary corrects.
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