Ms. Swanson asked the question, "How does knowing the fact 6×5 help you find 60×500?" Maria answered, "I know 6×5 is 30. Now all I have to do is count the zeros and I get 3,000." Use place value understanding to explain why her answer is incorrect.

See explanation

Step-by-step explanation:

Maria is incorrect as she didn't count the number of zeros properly. After knowing that 6 × 5 = 30, the question is 60×500 which means there are 3 zeros that should be added to the 30 that she got, this will have given her a value of 30,000 which is correct.

She write 3000 which is 3 under thousands rather than 30,000 which is 3 under tens of thousands.

question 1 is 8, question 2 is 9, question 3 is 24

step-by-step explanation:

now, the numbers they give you at the top are the key. from there, you just have to plug and chug! let's try 1, 2, and 3!

key: a=3, b=5, c=6

1. a+5

remember, a=3, so we plug that in to get 3+5=8

2. 15-c

c=6, so we plug that in to get 15-6=9

3. 4b

b=6, so we plug it in to get 4*6=24

time to try the rest on your own! if you put the answers below in a comment, i'll check them for you!