Question

1 a. \\((1 + 2) + 7\\)
1 b. \\(20 + (13 - 1)\\)
2 a. \\((3 + 6) + 18\\)
2 b. \\(10 - (6 - 6)\\)
3 a. \\(29 - (28 - 14)\\)
3 b. \\((22 + 22) - 24\\)
4 a. \\(10 + (30 + 20)\\)
4 b. \\(5 + (20 - 4)\\)
5 a. \\((24 + 13) + 14\\)
5 b. \\(8 + 27 - 28\\)
6 a. \\(11 - 3 + 28\\)
6 b. \\(8 + 8 + 29\\)

Explanation:

Evaluate column "a" expressions

$$
LATEXBLOCK0
$$

Evaluate column "b" expressions

$$
LATEXBLOCK1
$$

Answer:

No.	Problem	Answer
1b	\(20 + (13 - 1)\)	\(32\)
2a	\((3 + 6) + 18\)	\(27\)
2b	\(10 - (6 - 6)\)	\(10\)
3a	\(29 - (28 - 14)\)	\(15\)
3b	\((22 + 22) - 24\)	\(20\)
4a	\(10 + (30 + 20)\)	\(60\)
4b	\(5 + (20 - 4)\)	\(21\)
5a	\((24 + 13) + 14\)	\(51\)
5b	\(8 + 27 - 28\)	\(7\)
6a	\(11 - 3 + 28\)	\(36\)
6b	\(8 + 8 + 29\)	\(45\)