Lesson Notes By Weeks and Term - Senior Secondary School 1

SUBJECT: MATHEMATICS

CLASS:  SS 1

DATE:

TERM: 1st TERM

REFERENCE BOOKS

• New General Mathematics SSS 1     M.F. Macrae et al 

 
WEEK 1                   

TOPIC: REVISION OF BASIC OPERATION OF INTEGERS

ADDITION OF WHOLE NUMBERS

Examples:

1. Add the following numbers

        4109,39787,1501 and 7865

1. A trader brought 13 dozens of oranges, 1 gross of apples and 9 scores of pineapple. How many fruits did she buy altogether?

Solution

•    4,109

 39,787

   1,501

       + 7,865

 53,262  

1. 13 dozens of oranges = 13 X 12 oranges

                                     = 156 oranges

1 gross of apples = 144 apples 

9 scores of pineapples = 9 X 20

                = 180 pineapples

Total number of fruit that she bought altogether = 156 + 144 + 180

      156

      144

    +180

      480   

EVALUATION

1. What is the sum  of   6119, 19786 and 1999?
2. A school library has 3 gross of maths textbooks, 7 scores of english textbooks and 8 dozens of basic  technology textbooks. How many books altogether are in the library?

SUBTRACTION OF WHOLE NUMBER

Examples:

1. Find the difference between 42006 and 7998.
2. A boy was sent on an errand to buy 3 dozens of milk at #680 per dozen and 2 packs of sugar which cost #150 per packet. How much will he collect if he was given #2400?

Solution

1. Required difference 42006 – 7998

42006

                            -  7998

34008

1. Cost of 3 dozens of milk at #680 per dozens

= 3 x #680   =2,040

       Cost of 2 packs of sugar at #150 per pack = 2 x #150

                            =#300

      Total cost of the item brought = #2,040 + #300

                    =2,340

Hence,

The change that the boy will collect = #2,400 - #2,340

                    #2,400

                    #2,340

                    #      60

EVALUATION

1. Subtract 449 from 1,001
2. The number of students in a school is 1,819. What is the number of boys in the school ,if the number of girls is 27?

MULTIPLICATION OF NUMBERS

Examples:

1. Find the product of 819 and 39
2. Evaluate 79 X 109

Solution

1. Required product 819 X 36

819

           X    36

                                          4914

                                        2457

                  29,484

1. 79 X 109

109

        X       79

    981

             763

            8,611

EVALUATION

1. Evaluate 417 X 29
2. What is the product of 439 and 17?

DIVISION OF NUMBERS

Examples

1. Find the value of 6,513 ÷ 13
2. Given that 19 x y =323. Find the value of y
3. What is the quotient of  3,618

                                                9

Solution

1. 6,513÷ 13

          501

13  6,513

         65

          1

             0

             13

             13

1. 19 X y=323

Y= 323

      19

                    17

Y=      19  323

                19

                 133

                 133                Y= 17

EVALUATION

1. What is the value of P if 19 x P=3819?
2. In an estate, 26 people are living in a house. If there are 26026 people living in the estate altogether. How many houses are in the estate?

GENERAL/REVISION EVALUATION

1. Find the sum of 62429, 325, 1426 and 98
2. Find the difference between 76211 and 8899
3. If 16 X q= 40960.find the value of q

• In a village of 17598 people, 9998 are male. how many female are in the village?

READING ASSIGNMENT

NGM SSS1,review test 1 and 2 pages 3-4.  

WEEKEND ASSIGNMENT

1. Add the following numbers : 719,35,608            (a)5459     (b)6469    (c) 7469   (d)8489
2. Find the difference between 10001 and 799     (a)8202     (b)7202     (c) 9202   (d)1002
3. What is the product of 56 and 415?                    (a)23240   (b) 23250 (c) 33240  (d)25340
4. Evaluate the quotient  414?                                  (a)64          (b)46        (c) 56         (d)76

                                           9

1. Given that 43 x A=43043, find the value of A.  (a) 11          (b)101      (c)1001    (d)2463

THEORY

1. Mr. Ade’s pay slip reads thus

Basic salary        #15,500

Transport        #9,900

House allowance    #4900

Medical allowance    #8750

Other allowance    #3,870

1. What is the gross salary of Mr. Ade?
2. If Mr. Ade pays #500 as tax and #650 for pension and also repay a loan of #3,250.how much is his net income?

1. (a) There are 37 students in each classroom in a certain school. If the school has 19 classrooms, how many students are there in the school?

(b)  Given that  17 x z = 28985     Find the value of Z