Math
posted by Silika on .
1. Write the place name for the 4 in the following number: 3,624,786
Answer: Thousand
2. Round the following number to the nearest ten: 53
Answer: 5
3. Find the sum of the following problem:
2,168 + 305
Answer: 2473
4. Estimate the sum of the following problem to the nearest hundreds place. Make sure the answer represents an estimation of the numbers listed, not the exact solution.
156 + 235
Answer: The hundred pace is 3.
5. Find the difference of the following problem:
8,631  5,950
Answer: 2681
6. Find the product of the following problem: 724 x 17
Answer: 12308
7. Find the quotient of the following problem:14 ÷ 6,230
Answer: 445
8. Estimate the quotient by rounding both numbers to the nearest tens place. Make sure the answer represents an estimation of the numbers listed,not the exact solution.
962÷ 39
Answer:24.67
9. Write seven tenths as a decimal.
Answer: .7
10. Line up the decimal points, then add. Write zeros as needed.
36.9 + 7.35
Answer: 44.25
11. Line up the decimal points, then subtract. Write zeros as needed.
9.61  0.268
Answer: 9.342
12. Set up the problem and then multiply. Write zeros as needed.
419.2 x 2.54
Answer: 1064.768
13. Set up the problem and then divide.
12.86 ÷ 0.4
Answer: 32.15
14. Put the following values in order from least to greatest.
0.31, 1.24, 0.031, 0.5, 0.124
Answer: 0.031,0.124, 0.31, 0.5, 0.124
15. Marie purchased a new refrigerator. She needs to make 36 monthly payments of $29.95. What is the total price of the refrigerator?
Answer: $1078.2
16. Write the following fraction in simplest terms. 24/32:
Answer: 3/4
17. Use the lowest common denominator to add the following fractions. Give the final answer in simplest terms. 3/4 + 1/8:
Answer: 7/8
18. Use the lowest common denominator to subtract
the following fractions. Give the final answer in simplest terms. 5 13/15  1 2/3:
Answer: 4 1/5
19. Multiply the following fractions. Give the final answer in simplest terms.
4/7 x 5/12
Answer: 5/21
20. What is the reciprocal of 4/9?
Answer: 9/4
21. Divide the following fractions. Give the final answer in simplest terms.
3/5 ÷ 9/10.
Answer: 2/3
22. Write a fraction for the ratio of 5 boys to 8 girls
Answer: 5:8
23. Change 27% to a fraction.
Answer:27/100
24. Change50/16to a decimal.
Answer:0.32
25. A stereo that usually sells for $300 is on sale for15% off. What is the price of the stereo after the
15% discount?
Answer:$255
Ms. Sue can you please check all the answer? I have written them right after every question. Please give me the right answers as well. I might have 2 or 3 questions wrong.

Most of your answers are right. :)
For 2 and 4, your thinking is correct, but you didn't state the answer correctly.
7, 8, 14, and 24 are wrong. 
Ms. Sue I tried a lot for 8. but I have no idea how I can solve this. Please give me exact answer. The rest I think for the 7 the might will be the 445, it is asking for quotient in this. And I made mistake in 24, the questions was asking 16/50.
Please help me with the 8 and 7. 
For number 4, i guess it is 400 right?

8. The problem says to estimate, not give an exact answer.
960/40 = 24
7.
http://www.google.com/webhp?source=search_app#hl=en&gs_nf=1&pq=%20approaches%20to%20studying%20the%20human%20body&cp=11&gs_id=9&xhr=t&q=14+%C3%B7+6,230&pf=p&sclient=psyab&oq=14+%C3%B7+6,230+&gs_l=&pbx=1&bav=on.2,or.r_gc.r_pw.r_qf.,cf.osb&fp=4a7734df38a3f986&biw=711&bih=423
24. Yes. 16/50 = 0.32
4. Yes, it's 400. 
Thank you Ms. Sue. Really appreciate your help.

number 16. is 2/3 not 3/4