Question

OVERVIEW: The concept of addition of integers will be enriched

through this modelling activity.

Pre- Requisite Knowledge:

Rules of addition of integers

Materials required:

A4 sheet,coloured tiles/coins/buttons

Procedure :

Take two different coloured buttons/tiles/coins like white and black.

Denote one white button by (+1) and one black button by (-1). A pair

of one white button (+1) and one black button (-1) will denote zero

(ie)[1+(-1)=0].

Find the answers with the help of the coloured buttons for the

following addition statements:

(a) (-11) + (-12)

(b) (+10) + (+4)

(c) (-8) + (+7)

(d) (+13) + (-9)​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

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