addition and subtraction of integer by Mega Asmara

April 26, 2014

with Ms. Mega

Talk and Act

Integers NumberAdding and Subtracting

Compare and order integers.Place integers on a number line.Add and subtract whole number.

You have learnt:

5 – 6 persons each table

-1

+1

+3

-6

0

0

Remember !

(+) positive numberand

(+) positive number

ADDITION OF

(+) positive numberand

(-) negative number

ADDITION OF

(+3) + (-4) =

-1

(-) negative numberand

(-) negative number

SUBTRACTION OF

(-3) – (-2) =

-1

(+) positive numberand

(-) negative number

SUBTRACTION OF

(+1) – (-2) =

+3

(-) negative numberand

(+) positive number

SUBTRACTION OF

(-2) – (+3) =

-5

Let’s try using number line

(-2) – (-3)

=

(7) – (-4) =

(1) + (-7)

=

(5) – (-5) =

(8) + (-3)

=

EXERCISE

1

11

-6

10

5

Let’s play