2. You can give here a brief
description of the topic you want
to talk about. For example, if you
want to talk about Mercury, you
can say that it’s the smallest
planet in the entire Solar System
Introduction
3. Arithmetic Only numbers and
mathematical operators
Fractional Fractional numbers and
mathematical operators
Algebraic Variables, numbers, and
mathematical operators
Types of expressions
4. Distributive
multiplied by the sum/addition of
two terms, it is essential to multiply
each of the two numbers by the
factor, and finally perform the
addition operation.
a ( b + c) = ab + ac
Associative
involving the condition that a
group of quantities connected by
operators gives the same result
whatever their grouping, as long as
their order remains the same, e.g.,
( a × b ) × c = a × ( b × c ).
Commutative
involving the condition that a
group of quantities connected by
operators gives the same result
whatever the order of the
quantities involved, e.g.,
a × b = b × a.
Definition of concepts
5. 5y+3
This is an expression
5y+3=6
This is an equation
Expression vs. equation
6. You can replace the
image on the screen with
your own work. Just
right-click on it and
select “Replace image”
Watch this example
7. Parts of an equation
Variable
Mercury is the closest
planet to the Sun
Operator
Saturn is a gas giant
with several rings
Constants
Despite being red, Mars
is a cold place
11. 4x + 16 = 25 - 3x
Problem
Solution
Neptune is the fourth-
largest planet in the Solar
System
Despite being red, Mars
is actually a cold place.
It's full of iron oxide dust
Problem vs solution
4x + 16 = 25 - 3x
4x + 3x = 25 - 16
7x = 9
x = 9/7
13. Exercise
1.
x - 4
x + 3
x - 2
x
x - 1
a + 12
a + 8
a
2.
Find the perimeter of each of the following figures:
14. Assignment
Writing equations from word problems:
1. You can buy 5 small pizzas for the
same price as 3 small pizzas and
10 one-dollar drinks. How much
does each pizza cost?
2. The vet put 2 groups of kittens in
a cage with other kittens. She also
put 3 groups of puppies in the
next cage with other puppy. How
many animals are in each group?
15. 5a = 3a + 10
5a - 3a = 10
2a = 10
a = 5
Cost of each small pizza = $5
answer
You can buy 5 small
pizzas for the same
price as 3 small pizzas
and 10 one-dollar
drinks. How much does
each pizza cost?
16. (2 + k) + (3 + p)
answer
The vet put 2 groups of
kittens in a cage with other
kittens. She also put 3
groups of puppies in the
next cage with other
puppies. How many animals
are in each group?
19. CREDITS: This presentation template was created by Slidesgo, and
includes icons by Flaticon and infographics & images by Freepik
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any questions?
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