Simplify the expression using product notation: 3 a × 4 b 3a\times4b 3 a × 4 b

12 a × b 12a\times b 1 2 a × b

Simplify: 3 × ( a + b ) 3\times\left(a+b\right) 3 × ( a + b )

3 × a + 3 × b 3\times a+3\times b 3 × a + 3 × b

Year 8 Mathematics - Algebraic Operations Lesson Slides

4 Slides • 7 Questions

1

Algebraic Operations

Chapter 4

A: Algebraic notations

B: The language of mathematics

C: Collecting like terms

2

Multiple Choice

Simplify the expression using product notation:

$3a\times4b$

1

$7ab$

2

$12ba$

3

$12a\times b$

4

$12ab$

3

Multiple Choice

Simplify:

$3\times\left(a+b\right)$

1

$3a\ +\ b$

2

$3a+3b$

3

$3ab$

4

$3\times a+3\times b$

4

Multiple Choice

Write in simplest form the following expression:

$2\times a\times b\times c\times4\times c\times c$

1

$6abc^3$

2

$8abc^2$

3

$2acb\times4c^2$

4

$8abc^3$

5

Multiple Choice

What is the coefficient of $c$ in the following expression ?

$2c^2-c+4$

1

2

1

3

-1

4

6

Multiple Choice

How many constant terms are there in the following equation ?

3+4ab-\pi=4a-5

1

2

4

3

4

5

7

$ab+3a^2b-2ab-a^2$

1. Is this an expression or equation ?
2. What is the coefficient of $a^2$ ?
3. How many terms are there ?
4. Are there any like terms ?

8

Challenging questions ahead...

9

Multiple Choice

What is the coefficient of $b$ in the following expression after collecting like terms ?

4a\ +3b-c-b

1

$3$

2

$2$

3

$-1$

4

$3\ and\ -1$

10

Multiple Choice

How many like terms are there after simplifying the following equation using index notations:

$3ab+4b^2-ab=2b\times\left(a+b\right)-6$

1

$2$

2

$3$

3

$6$

4

$5$

11

Well done everyone!

Chapter 4

Exercise 4A ........................

Algebraic Operations

Chapter 4

A: Algebraic notations

B: The language of mathematics

C: Collecting like terms

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