Question

Ly.
1.
The students find the answers for the question given by the teacher using the
addition rules in a number - ray game
1. 2 + 3
2. (-2)+(-3) + (-7)
3. 2+(-3)+7
4. (-2) + (-3) + 7
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Answer 1

Answer:

1) 5

2) -12

3) 6

4) 2

Step-by-step explanation:

2) Add same signs which is (-) then keep the sign.

3) Subtract unlike/different signs and keep the sign of the higher value. (2+7=9) 9-3=6. 9 is positive and higher than 3 which is negative. So, the answer will be positive.

4) 2 and 3 are both negative. So, add 2 & 3 and keep the negative (-) sign, the answer will be -5. 7 is positive and a higher number than -5. So, 7-5=2.