Answer:
1.
5[(2-(-3))]
5(2+3)
5 (5)
answer: 25
2.
w(7-x)
2(7-10)
2(-3)
answer: -6
3. a - b ÷2
9 - 4 ÷2
9-2
answer :7
4.n^2 - m
7^2 - 4
49 -4
answer: 45
5.5mn
5(4)(-3)
answer: -60
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Answers & Comments
Answer:
1.
5[(2-(-3))]
5(2+3)
5 (5)
answer: 25
2.
w(7-x)
2(7-10)
2(-3)
answer: -6
3. a - b ÷2
9 - 4 ÷2
9-2
answer :7
4.n^2 - m
7^2 - 4
49 -4
answer: 45
5.5mn
5(4)(-3)
answer: -60