# Mathematics Guides for JSS 3 Basic Operations (Binary Number System)

**MATHEMATICS **

**THEME – BASIC OPERATIONS **

**TOPIC – ADDITION OF NUMBERS IN BASE 2 NUMERALS**

**INSTRUCTIONAL MATERIALS**

1. Counters and sum cards

2. Chart showing the multiplication of two 2-digit binary numbers.

3. Chart showing the division of two 2-digit binary numbers.

**LEARNING OBJECTIVES **

By the end of the lesson, students should be able to:

1. add two or three 3-digit binary numbers.

2. subtract two 3-digit binary numbers.

3. multiply two 3-digit binary numbers.

4. divide two 2-digit binary numbers.

**CONTENTS OF THE LESSON**

**FOCUS LESSONS **

1. Addition of two or three 3-digit binary numbers.

2. Subtraction of two 3-digit binary numbers.

3. Multiplication of two 2-digit binary numbers.

4. Addition of two to 3-digit binary numbers.

**LESSON PRESENTATION**

TEACHER’S ACTIVITIES1. Guides students to add two or three 3-digit numbers in base 2.

2. Guides students to subtract two 3-digit numbers in base 2 number system.

3. Guides students to multiply two 2-digit numbers in base 2.

4. Guides students to divide 3-digit binary numbers.

STUDENT’S ACTIVITIES1. Do addition of simple two or three 3-digit binary numbers.

2. Carry out subtraction of two 3-digit numbers in base 2 number system.

3. Carry out multiplication of two 2-digit numbers in base 2.

4. Carry out division of two to 3-digit binary numbers.

**LESSON EVALUATION**

Students to,

1. Add two or three numbers involving two or three 3-digit numbers.

2. Subtract two numbers involving 2-digit or 3-digit numbers.

3. Multiply given 2 digit numbers.

4. Divide given two 3-digit binary numbers.