86.8k views
1 vote
Can someone please help me with these problems?

Can someone please help me with these problems?-example-1
User Tricky
by
8.1k points

2 Answers

2 votes
17. The student did the exponent operation first. 3^2=9. The student is correct.
18. The student made a mistake in the second step by subtrating, when he was supposed to multiply 8×2.
19. Correct asnwer is 16:
23-8×2+3^2=
=23-8×2+9=
=23-16+9=
=7+9=
=16
User Fabio
by
8.8k points
2 votes
17. Subtraction. According to the order of operations, he should've done the exponent of 3 first.

18. He then did 15×2. According to the order of operations, he should've done the multiplication of 8×2, since, if there are only multiplication and/or division left, you work left to right. He isn't correct.

19. 16, I think, I did it in my head.
User Flaxel
by
7.7k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.