Subtraction of Integers using Chip Model

Q. In a football tournament, it was decided that on winning a match +1 point will be awarded to the winning team and -1 point will be awarded to the losing team. A team played in-total 14 matches in a season and won 4 matches while no matches were drawn. Then at the end of the season, the team's total points will be points.

Q. Which of the following images represents 9 - (-5)?

1. 
2. 
3. 
4. None of the above

Q. The missing term $(?)$ in $-9-?=-2$ is .

Q. Evaluate the value of $(-4-1)$ using chip model.

1. $-3$
2. $-5$
3. $5$
4. $3$

Q. Which of the following images represents $9–(–5)?$

Q. Find the value of $5-3$ using chip model.

1. $5$
2. $3$
3. $2$
4. $4$

Q. Sarah has $6$ apples. If Sarah gives $2$ apples to her friend James, how many apples does Sarah have?

1. $6$
2. $4$
3. $5$
4. $10$

Q. Craig bought a mathmagic box. The box gives an output when three inputs are given to it.
What is the output when 11, 5, 9 are given as inputs?

1. 360
2. 470
3. 450
4. 420

Q. Subtract 9 from 12 by using the chip model.

You begin with
You addWhich of the following chip structures represents the result?

1. 
2. 
3. 
4.