Still on Introduction to Logarithms.  Rest it on your mind…. Maths is fun!!😁😁😁!   In its simplest form, a logarithm answers the question: How many of one number do we multiply to get another number? Example: How many 2s do we multiply to get 8? Answer: 2 × 2 × 2 = 8, so we had to multiply 3 of the 2s ….  Read More

    STANDARD FORMS Is a way of expressing numbers in the form A x 10x where 1< A < 10 and x is an integer, is said to be a standard form. Numbers are grouped into two. Large and small numbers. Numbers greater than or equal to 1 are called large numbers. In this case ….  Read More

    Logarithm of numbers greater than one – Integer Fraction (Mantissa).   Base ten logarithm of a number is the power to which 10 is raised to give that number e.g.628000 = 6.28 x105628000 = 100.7980 x 105 = 100.7980+ 5 = 105.7980 Log 628000 = 5.7980           Integer Fraction (mantissa) If a number is ….  Read More

    Logarithms and Anti-Logarithms Suppose you are multiplying a number three times. What are you doing? You will say you will get a cube of a number if it is multiplied three times, Right? Do you know the inverse process of a cube? Finding the cube root of a number is the inverse of getting a ….  Read More

    Answer to Lessob 3 Assignment  on Standard For, Evaluation- Logarithms HA’YHWH🛐 YESHUA 🛐HAMASCHIAC🛐 SCHOOL, SS2 First Term Mathematics, Lesson 3. Logarithms : Standard Form     Evaluate this 👇 Still leaving your answers in standard form   (iii)             7.113 x 10-5–  8.13 x 10-6 Answer. iii.             =   7.113 x 10-5 – 8.13 x 10-6 ….  Read More

    Logarithms Can Have Decimals   On Introduction to Logarithms we saw that a logarithm answers questions like this: How many 2s do we multiply to get 8? Answer: 2 × 2 × 2 = 8, so we needed to multiply 3 of the 2s to get 8 So the logarithm is 3 And we write “the number of 2s we multiply to ….  Read More

    Lesson 8. Decimals on Logarithm- Answers To Assignment Questions on Lesson 7. Coming here

Introduction to Approximations/ Estimations in Logarithms   Approximation and or Estimation is a Skill for Life. As you walk around and live your life, imagine if you could easily estimate: how much a bill will be, which item is the best value for money the size, areas and angles of things Also, it would be ….  Read More

  Estimation or approximation is finding a number that is close enough to the right answer. You are not trying to get the exact right answer What you want is something that is good enough (usually in a hurry!)   Example: you want to buy eight magazines that cost $1.95 each. When you go to buy them the cost is $17.25. Is that right? ….  Read More

    SS2 Class work Assignment  on Approximation Introduction; Approximate The Following Sums – Lesson 10  Answers below 1,What is 0.3126 x 53.81? Ans. Multiply 0.3 × 50 to get 15. Adjust that a little bit higher, and make your answer 17. 2.what is 52 × 13 × 20 Ans The two outer number, 52 ….  Read More

  Approximations/ Estimations Using Standard Form.       What is “Standard Form”? that depends on what you are dealing with! I have gathered some common “Standard Form”s here for you.. Note: Standard Form is not the “correct form”, just a handy agreed-upon style. You may find some other form to be more useful. Standard Form of ….  Read More

    Significant figures are used to establish the number which is presented in the form of digits. These digits carry a meaningful representation of numbers. The term significant digits are also used often instead of figures. We can identify the number of significant digits by counting all the values starting from the 1st non-zero digit ….  Read More

          Answers to Home Work on  Lesson 13. Approximations Using Significant Figures.         Home work or Assignment Questions. 1, Approximate this figures   907235   to the nearest a-ten, b- hundred c-thousand     2, SIGNIFICANT FIGURE: Express the following numbers to (i) 1s.f (ii) 2s.f (iii) 3s.f 78602 (b) ….  Read More

Approximation Using Percentage Error   The difference between Approximate and Exact Values, as a percentage of the Exact Value. Comparing Approximate to Exact   First find the Error: Subtract one value from the other. Ignore any minus sign. Example: I estimated 260 people, but 325 came. 260 − 325 = −65, ignore the “−” sign, so my ….  Read More

    Answer to Lesson 15 Home Work.     Assignment.  And answers   Example: The report said the carpark held 240 cars, but we counted only 200 parking spaces. |240 − 200||200| × 100% = 40200 × 100% = 20% The report had a 20% error.   Lesson 16. Approximation Using Percentage Error: Percentage Difference, Percentage Error, Percentage ….  Read More

    Approximation Using Percentage Error and Exact Value..   Refer to Lesson 16     The difference between Approximate and Exact Values.   as a percentage of the Exact Value. Comparing Approximate to Exact   First find the Error: Subtract one value from the other. Ignore any minus sign. Example: I estimated 260 people, but 325 ….  Read More

                     Sequence and Series             Sequences and Series I am sure every one of you must be having your piggy banks. So, suppose you put  ₦100 today in your piggy bank. Next day you put ₦10. Again on the third day, ….  Read More

    Lesson 18  Activity.   Question: Identify the sequence of the following function n (n+3) a.4, 10, 26, … b.4, 12, 18, … c.2, 10, 16, … d.4, 10, 27   Solution: Correct option is A. The given function is n(n+3), When n = 1, 1(1+3) = 4 n = 2, 2(2+3) = 10 ….  Read More

    Lesson 19  Home Work Exercise     Calculate the first 4 terms of this sequence:   {an} = { (-1/n)n }     Answers   Calculations: a1 = (-1/1)1 = -1 a2 = (-1/2)2 = 1/4 a3 = (-1/3)3 = -1/27 a4 = (-1/4)4 = 1/256 Answer: {an} = { -1, 1/4, -1/27, 1/256, … }      Today’s Lesson: Arithmetic Progression  ….  Read More

  Answer to Lesson 20 Home Work.     Q1 What is the general form of Arithmetic Progression? The general form of arithmetic progression is given by a, a + d, a + 2d, a + 3d, . . .. Hence, the formula to find the nth term is: an = a + (n – 1) ….  Read More

                 Geometric  Mean- Introduction In mathematics and statistics, the summary that describes the whole data set values can be easily described with the help of measures of central tendencies. The most important measures of central tendencies are mean, median, mode and the range. Among these, the mean of ….  Read More

  1. Logarithms 2. Approximations

  Geometric Progression – Sequence and Series. In geometric progression (G.P.), the sequence is geometric and is a result of the sum of G.P. A geometric series is the sum of all the terms of geometric sequence. Before going to learn how to find the sum of a given Geometric Progression, first know what a GP is ….  Read More

‍   Construction of Quadratic Equations.   Quadratic equations are algebraic expressions of order ‘2’. They are categorised amongst equations of higher orders. The topic is very common in all the competitive exams and requires a lot of practice from young learners. But, what are these equations and where can we use them? What are ….  Read More

        Answers to Lesson 23 Assignment and More Worked Exercise. Find the sum of the first 6 terms of the G.P 4, 12, 36,         Other Worked Sums     Geometric Progression Questions and Solutions Q.1: If the first term of a G.P. is 20 and the common ratio ….  Read More

  Quadratic Equation- Products of Roots. Let’s Pray👆: May HA’RUACH 🛐 HA’YHWH🛐 PRESERVE AND PROTECT Us all, as we Gather In HIS 🛐 Class, Here in HIS🛐 SCHOOL To Learn and Prepare for the Coming WAEC season, which is already here And MAY HE🛐, HA’RUACH 🛐 HA’ADONAI 🛐 THE GREAT MASTER OF HIS🛐 UNIVERSE,  GRANT ….  Read More