Use number line and add the following integers :
(iii) (- 3) + (+ 12)

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Solution

Step 1 : On the number line, we first move 3 steps to the left of 0 reaching - 3.
Step 2 : Then we move 12 steps to the right of - 3.
Step 3 : The point where we will reach after moving 12 steps right from - 3 is the answer.
Step 4 : The point is + 9.
Step 5 : Hence, (- 3) + (+ 12) = 9.

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Question 2 (e)

Use number line and add the following integers:

(–1) + (–2) + (–3)

Question 2 (a)

Use number line and add the following integers:

9 + (–6)

Use a number line and add the following integers: (a) 9 + (-6).

Use number line and add the following integers:

(–1) + (–2) + (–3)

Use a number line and add the following integers: (e) (-1) + (-2) + (-3).

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