Basic Operations on Whole Numbers
This lesson covers addition and subtraction of whole numbers, including how to align numbers by their place values. It also explains multiplication and division by 10, 100, and 1000, and introduces the use of the BODMAS rule for solving mixed operations.
- 33:38 “The number to be divided is called the division, and the number performing the division is called the divisor. So in this case, 20 is the dividend, and 5 is the divisor, so to divide it all number, that ends in zeros by...”
- 45:51 “that's the answer to 6, so now we're also going to treat what problems, we're going to, because there is no out, you want to have what problems on basic operations, especially when you have to run errands for your parent...”
- 34:33 “So now walk a sample, all divisor. Now the first one using short division method, using short division method, calculate the following. Now the first one there, you have 1 a, 2, 1, 9, divided by 3, and b, you have h, o,...”
Addition and Subtraction of Fractions
This lesson covers how to add and subtract fractions with the same and different denominators. It explains finding the least common multiple (LCM) to create equivalent fractions for addition and subtraction. Examples are provided for practice.
- 15:07 “minus this 73 over 10. Now that will give you what? It's 1, that will give you 8 over 10. You simplify 2, yeah, 4, 2, yeah, 5. I'll give you 4 over 5. So that's the answer. So let's move to the next question. A boy plays...”
- 10:50 “then you get the answer for the remainder which is the oranges. So we have to go about that very simple. We have 1 over 3, plus 3 over 8, plus 1 over 6. So when you turn this to, the LCM of 3, 8 and 6 is 24. Remember whe...”
- 07:28 “the denominator by 3 to get to f. It also means that you're multiplying the numerator also by 3. Giving you 45 over 12. So for us to solve this problem now, 77 over 12, minus 45 over 12, that will give you 32 over 12. So...”
Whole Numbers and Their Properties
This lesson covers whole numbers, including their definition and characteristics. It explains how to express whole numbers and decimal numbers in standard form. The lesson also includes finding prime factors, least common multiples (LCM), and highest common factors (HCF) of numbers.
- 18:36 “this is moving up, it becomes a minus. That's negativity. Take notes. It becomes very important. It becomes very important. Now, looking at it again, another example that we have in the part of division. So, you could ha...”
- 17:03 “it is division. We moved backward. That's out of a 7. So, if you look carefully, so we have, what do I have? I have 7, 7 over how many times do I have? I have 10 ways to power 6. Because of the sign of division, because...”
- 16:03 “I mean this divide by this. So, what do I need to have here? If you look at it carefully, what have I just done? It means that since the movement is backward, it becomes a division. And so, what am I going to be having?...”
Whole Numbers and Prime Factorization
This lesson covers the expression of whole numbers and decimal numbers in standard form. It includes finding prime factors of numbers up to 200, determining the least common multiple (LCM), and finding the highest common factor (HCF). Additionally, it addresses perfect squares and square roots using
- 11:19 “factor of 504 and 588 will follow the two methods, so we have example three, on the log, so I have followed the division methods, I have 504 and I have 588, now going to the process division method, now what's the divisi...”
- 08:57 “get two, now using the division method, division method method B, also for clarification, let's see the division method now, in the division method, that's method B, it will give you, we have it as right out the division...”
- 27:32 “division rule, you would all have the same pattern of question, follow the same division rule, now bring out the book, that's the example, it's bring out the value, that's 540, okay, what can go, let's go with 2, this fa...”
Converting Base 10 to Binary
This lesson teaches how to convert base 10 numerals into binary numbers using two methods: subtraction and successive division. Students will learn to identify the powers of 2 and apply them in the conversion process.
- 10:21 “We have done this using this subtraction method. I'm using the same number so that we can see for ourselves that, whichever method you use, you arrive at the same answer. That's the essence of me. Repeat the same numbers...”
- 09:34 “So, there's a 2 in 3. So, what do we do? The same thing here, 3 minus 2, given us 1. That means, well, I don't get 2. Because, we have 1 left here now. So, what do we have? We also have 1 left. So, just put it there. We...”
- 11:06 “It's the same thing we're going to do. The same line we use in doing SCM and SCM. That's the same line we're going to use in solving, trying to convert base 10 to base 2 using the successive division method. So, for the...”
Multiplication in Binary Numbers
This lesson covers the multiplication of 2-digit and 3-digit binary numbers. It explains the basic rules of binary multiplication and how to apply them in calculations. Students will learn to perform binary multiplication without borrowing.
- 15:40 “transferred to this place so that gives us plus one yeah plus one one plus one that's two we turn back here that gives us zero that what do I have then I have the last one transferred yeah that's plus one so plus one plu...”
- 00:00 “Hello, my name is Oyase Sonday. I'll be taking you madmatis jsS3 class. We're looking at an interesting topic for today that says multiplication of numbers in base 2 numerals, multiplication of numbers in base 2 numerals...”
Departmental Accounts
This lesson covers the definition and purpose of departmental accounts. It explains how to prepare these accounts to show the performance of different departments in a business. The lesson also discusses the advantages of using departmental accounts for comparison, error detection, and managerial as
- 22:51 “And what does that mean? It means that the departments A would take ratio 6. The department B would take ratio 6 and the department C would take ratio 6. So for salaries and wages, the departments A would take 6 divided...”
- 22:03 “we need to now apportion to the different departments on a particular basis. So we are told that now salaries, insurance and rents will be apportioned on the ratio 6, 6, 3. So now let's look at the value of our salaries...”
- 26:48 “The rent is 4,200 NIRA. We want to share the rent of 4,200 NIRA among the three departments. So let's move this up. Okay, so for rent, remember we are sharing 4,200 NIRA among the three departments. And what is the ratio...”
Rational and Non-Rational Numbers
This lesson covers the identification of rational and non-rational numbers. It explains the characteristics of different number sets, including natural numbers, whole numbers, and integers. The lesson also discusses the significance of the number PI in relation to circles.
- 16:41 “Now, look at that question number 2. We have question number 2. Question number 2 says, calculate the ratio of the area to the square of the radios. Calculate the ratio of the area to the square of the radios. Now, how d...”
- 17:27 “Now, when you are calculating the ratio of the area to the square of the radios, this is what you do. The ratio of the area to the square of the radios, so now let's go. When you are doing that, what you are simply going...”
- 11:51 “Two radios makes one diameter. So I have diameter is two radios. Two radios makes one diameter. So if I'm calculating for my pie, for example, my pie will give me second phrase of the cycle, that the second phrase of the...”