### Present Remotely

Send the link below via email or IM

• Invited audience members will follow you as you navigate and present
• People invited to a presentation do not need a Prezi account
• This link expires 10 minutes after you close the presentation

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.

# Year 7- Integers

No description
by

## Yee-Ling Ng

on 11 March 2016

Report abuse

#### Transcript of Year 7- Integers

INTEGERS
INTEGERS ARE WHOLE NUMBERS THAT CAN BE NEGATIVE, ZERO OR POSITIVE.

E.G. -4, -3, -2, -1, 0, 1, 2, 3, 4
NUMBER LINE
INTEGERS
EACH NEGATIVE NUMBER HAS A POSITIVE OPPOSITE.

E.G. -3 AND 3 ARE EXAMPLES OF OPPOSITE NUMBERS.
INTEGERS
WHERE IN REAL LIFE DO WE USE INTEGERS?
Up and down
8-5=
5-8=
-5-2=
-5+3=
-2+1-4=
-1-1-1-1=
1-1-1-1=
Sign belongs to the number after it
When 2 signs are next to each other
-2
-3
+
Operation
Direction
=
- 5
When 2 signs are next to each other
Rules
+ + =
+
+ - =
-
- + =
-
- - =
+
=
Examples
3
-4
-
- 3
+
-3
=
=
- 4
-
6
Multiplying Integers
=
-4
-3
=
=
- 4
(-6)
x
x
x
5
(-7)
(-9)
6
Dividing Integers
Multiplying Integers
=
-4
-12
=
=
- 4
(-2)
÷
÷
÷
10
(-4)
(-9)
(3)
Dividing Integers
Text (p. 365)
Q1 (b), Q2 (a, c), Q3, Q4 (a, ce, e, g, j, l, n, p), Q5 (a, c, e, g, j, l, n, p), Q6 (a, c, e, g, i, k), Q7 (a, c, e, g, i, k), Q8 (a, c, f, h), Q9 (a, c, f, h), Q10
- 5 ÷ - 10 = - 5
- 10
= 1
2
3 = 3 x 3
2
-3 = -3 x -3
2
= 9
Order of Operations
Deal with the
brackets
first
Deal with
X
and
÷
(left to right)
Then,
+
and
-
last (left to right)
Examples
5 + 2 x (-3)= 5 + (-6)
= -1
Do the x first, before +

Examples
-6 + 2 x (-3)= 5 + (-6)
= -2
Do the x first, before +

- 6 ÷ 18
= - 6
18
=
2 =
2
-2 =
2
=
Number Planes
Point on a plane has a x and a y coordinate (x, y)

The x coordinate is written before the y coordinate.
Number Planes
Text (376)
Q1, 3, 4 (a, b [i, iii, v, vii]
Q6, Q7
BIDMAS
Full transcript