3.
What is 0.72 written as a simplified fraction? (1 point)
seventy-two over one hundred
one hundred over seventy-two
thirty-six over fifty
eighteen over twenty-five
4.
Ms. Johnson’s class is having a pizza party. If there are 14 students and 7 pizzas cut into 8 slices, what answer choice represents the fraction of one pizza that each student receives? (1 point)
one-third
one-fourth
one-half
one-eighth
5.
What makes the statement true? 8–2 = ? (1 point)
64
16
negative one over sixty-four
one over sixty-four
6.
Based upon the 2010 census data, the total population of the U.S. is 308,745,538 people. Approximately, what is this population in scientific notation? (1 point)
3.1 × 10^8
3.1 × 10^7
3.1 × 10^–8
31 × 10^7
7.
What is the solution to (3 × 102) x (5 × 105) written in scientific notation? (1 point)
1.5 × 10^8
15 × 10^8
1.5 × 10^7
15 × 10^7
8.
If there is one-fourth of a pie, and Amy only wants two over three of it, how much of the pie does she want? (1 point)
one-third
one-fourth
one-fifth
one-sixth
9.
Dory bought 2 computers on sale for $210.99 each. He sold them to his friend for $240.00 each. What was his profit? (1 point)
$52.99
$58.02
$421.98
$480.00
10.
What is 0.00000387 in scientific notation? (1 point)
0.387 × 10^–7
3.87 × 10^–6
3.87 × 10^6
387 × 10^–8
11.
What is thirty-one over four written as a decimal? (1 point)
6.75
7.50
7.75
8.25
12.
The table below shows the populations of four countries for the year 2006 expressed in scientific notation.
Population in 2006
Country Population
Lebanon 3.90 × 10^6
Mexico 1.08 × 10^8
Peru 2.84 × 10^7
Spain 45.5 × 10^6
Of the countries listed, which one had the largest population in 2006?
(1 point)
Lebanon
Mexico
Peru
Spain
13.
What is 2.28 × 10–8 in standard form? (1 point)
228,000,000
22,800,000
0.0000000228
0.000000228
14.
Which of the following appears to be an irrational number? (1 point)
0.404404440…
0.783783783…
negative four over fifteen
square root of thirty-six
15.
Which number is equivalent to 0.3? (1 point)
one-third
thirty-three over one hundred
five-sixths
two-thirds
16.
Jessica went to the mall and used one-sixth of her money on lunch. What is the fraction of her money expressed as a decimal? (1 point)
0.6
0.7
0.16
0.17
17.
Josh has five-eighths of a foot of plywood. To finish building the deck, he needs five times that amount. How many feet of plywood does Josh need? (1 point)
3 feet
3 one-half feet
3 one-eighth feet
3 two-ninths feet
18.
negative tw- thirds + ( negative thre- tenths) = (1 point)
negative five-thirteenths
six over thirty
one over three
negative twenty-nine over thirty
19.
eleven over twelve + negative two over three= (1 point)
one-fourth
thirteen over twelve
negative one-sixth
–negative seven-twelfths
20.
5one-third – three and four-sevenths= (1 point)
two and three fourths
–two and three fourths
one and sixteen over twenty-one
negative one and sixteen over twenty-one
21.
one-half • –one-third (1 point)
–1one-sixth
negative two-thirds
negative three-eighths
–one-sixth
22.
seven over eight ÷ eleven over twelve = (1 point)
seventy-seven over ninety-six
nine-tenths
twenty-one over twenty-two
twenty-two over twenty-one
23.
A length of ribbon is three and one-half yd long. How many pieces one and five-ninths yd long can Joy cut from the length of ribbon? (1 point)
1
2
3
4
24.
2two and seven-fifteenths ÷ 3three and two-thirds = (1 point)
negative thirty-seven over fifty-five
–81two-fifths
–1negative one and eighteen over thirty-seven
–negative twenty-three over fifty-five
my answers
3.d
4.b?
5.a
6.b
7.b
8.a
9.b
10.a
11.c
12.b
13.d
14.a
15.a
16.c
17.c
18.?
19.a
20.a
21.d
22.d
23.b
24.a
Ms. Sue please help!
61 answers
14 students, 7 pizzas. Doesn't matter how many slices they use.
#5. Not sure, since you botched the exponent. However,
8^2 = 64
8^-2 = 1/64
#6. (a) There are 8 decimal places after the 3.
#7 (a)
3*10^2 x 5*10^5 = 15*10^7 = 1.5*10^8
#8. (d)
1/4 * 2/3 = 2/12 = 1/6
#10. (b)
.387 = 3.87*10^-1
shift left 5 more places and you have 3.87*10^-6
#13. (c)
#15,16 correct, if the final digit repeats.
#18. (d)
#20. (c)
5 1/3 - 3 4/7 = 16/3 - 25/7 = 112/21 - 75/21 = 37/21 = 1 16/21
#22. (c)
7/8 * 12/11 = 84/88 = 21/22
The rest look correct.
Looks like you need to review some more, especially scientific notation.
Plus, what's all the nonsense with words? Real people use digits when talking about numbers. That, and the typos made it hard going.
-2/3 - 3/10 = -(2/3 + 3/10) = -(20/20 + 9/30) = -29/30
thanks for helping man.
A certain computer can perform 10^5 calculations per second. How many calculations can it perform in 10 seconds? (3 points)
10,000,000?
0.000027/0.000009 how can i show the steps to show it in simplest form?
A
D
A
A
D
B
C
D
B
C
B
B
C
C
B
B
C
D
D
C
A
Thanks Steve I failed : - )
:3
3.D
4.C
5.B
6.B
7.A
8.D
9.D
10.C
11.D
12.D
13.D
14.A
15.D
16.A
17.A
18.B
19.C
20.C
21.D
22.D
23.B
24.C
the rest you can do
but these are the correct answers for Conexus students
4. A
5. D
6. B
7. D
8. C
9. B
10. B
11. C
12. D
13. D
14. C
15. D
16. C
17. A
18. B
19. B
20. C
21. D
22. C
23. B
24. C
I swear they are correct
4. 1/3
5. 1/81
6. 2.9x10^6
7. 1.2x10^8
8. 1/6
9. $8.00
10. 3.87x10^-6
11. 4.5
12. Chicago Cubs
13. 0.0000356
14. 1.414213562..
15. 1/3
16. 0.6...
17. 3 3/4
18. -52/63
19. 1/4
20. 1 4/9
21. -1/8
22. 4/9
23. 3
24. 37/55
25. Look it up
26. 10^5=100,000x10=1,000,000(Workpad)
(Look up the first one, too)
This is 100% correct! and I know that all tests are different but this is my test answers and I hope you are lucky and some of these answers are on your test.
3.18/25
4.1/3
5.1/64
6.3.1*10^/8
7.2.4*10^10
8.1/24
9. $58.02
10.x 5.12*10^-6
11.4.5
12. Chicago Cubs
13. 0.000857
14.1.414213562
15.1/3
16.x0.16 (with the line on top of the 16)
17.2 5/8
18.-29/30
19.1/4
20.1 4/9
21.-1/6
22.4/9
23.2
24.4 4/9
25-26. written response
I got Questions 10 and 16 wrong on my own none of the ones above are correct for everyone else mine are correct and updated for 2019
and these are my answers I put down for 10 and 16 that were wrong the ones above on mine are the right ones.
10.512*10^-5 (this was my answer it WAS INCORRECT)
16.0.6 wit the line on top of the six (this was my answer it WAS INCORRECT)
I GAVE THE RIGHT ANSWERS ON THE ONES ABOVE SO YOU CAN CHECK YOUR ANSWERS IF YOU WANT TO UNLESS YOU DONT BELIVE ME.
4.c
5.c
6.b
7.c
8.c
9.d
10.c
11.c
12.b
13.d
14.c
15.a
16.a
17.c
18.d
19.b
20.c
21.d
22.d
23.b
24.a
This is for CA students grade 8 unit 3 lesson 11 Rational Numbers unit test Thanks to the "right kid" I got 10/22
3. D
4. C
5. B
6. B
7. D
8. D
9. B
10. C
11. D
12. B
13. D
14. A
15. D
16. A
17. A
18. B
19. C
20. C
21. D
22. D
23. B
24. C
you’re welcome. :) 3>
3. D
4. C
5. C
6. A
7. C
8. D
9. B
10. C
11. C
12. B
13. D
14. B
15. B
16. A
17. D
18. B
19. C
20. C
21. A
22. D
23. B
24. C
I could have accidentally put one or two wrong and I’m sorry if I did but I hope they’re all right :)
4.) A
5.) C
6.) B
7.) C
8.) D
9.) B
10.) C
11.) D
12.) B
13.) D
14.) A
15.) B
16.) C
17.) A
18.) A
19.) A
20.) D
21.) D
22.) D
23.) B
24.) A
C
C
B
D
D
B
C
D
D
D
C
B
A
A
D
C
C
D
D
B
C
100% multipul choice questions
3.d
4.a
5.b
6.b
7.d
8.c
9.d
10.b
11.c
12.c
13.d
14.c
15.d
16.c
17.a
18.d
19.b
20.c
21.d
22.d
23.b
24.a
3: 0.68 can be simplified to 17/25
4: 14 students have 7 pizzas cut into 8 slices, each student will have 1/2 a pizza
5: 8^-2 = 1/64
6: in 2012 the population of florida was 3,158,697. as scientific notation it’s approximately 3.2x10^6
7: (4x10^3) x (3x10^4) as scientific notation is 1.2 x 10^8
8:there is 1/6 of a cake and Mitchell only wants 3/12, they want 1/24 of the cake
9: Dory bought 2 computers, each cost $210.99 and he sold them for $240.00 each, his profit was 58.02
10: 0.00000512 as scientific notation is 5.12x10^-6
11: 31/5 as a decimal is 6.2
12: 2010 census shows the population for texas, florida, and idaho, the true statement is that idaho has the smallest population
13: 3.56x10^-5 is stander form is 0.0000356
14: 3.141592... is the irrational number
15: 0.7 repeating is 7/9 as a fraction
16: ben spent 2/3 of his allowance, the decimal equivalent is 0.6 repeating
17: ashley need 3/4 cups of sugar five times for five batches of cookies, she needs 3 3/4 cups of sugar
18: -1/6 + (-3/7)= -25/42
19: idk i got it wrong but the question was 9/13 +(-2/5) =?? (it’s not -7/65 i’ll tell you that)
20: 5 1/3 - 3 4/7= 1 16/21
21: 1/2 x -1/3 = -1/6
22: 5/8 divided by 15/16 = 2/3
23: 3 1/2 yd is the length of a ribbon, joy needs to cut 1 5/9 yd long pieces, she can cut 2 pieces
24: 1 2/5 divided by 2 1/3 = 3/5
the questions are probably not going to be in order for everyone but try to use the parts of the question i put in the answers to find where they belong on your test if i got anything wrong please tell me
good luck!!
1.D
2.A
3.D
4.B
5.D
6.D
7.B
8.C
9.C
10.B
11.D
12.C
13.D
14.A
15.D
16.B
17.C
18.C
19.D
20.C
21.B
22.C
Just so you know, number one is actually number 3.
I hope this helps! :)
some of the questions are different for each person so that why the answer for one was different for you :) it’s a unit test so it makes sense that they are different to avoid cheating (won’t stop me tho >:)
3.D
4.C
5.D
6.A
7.D
8.D
9.D
10.C
11.D
12.B
13.D
14.A
15.B
16.C
17.C
18.B
19.B
20.C
21.D
22.D
23.C
24.C
100%
you dense forks
[Essay question, it kind of counts as two]
3.18/25
4. 1/4
5. 1/81
6. 2.9 x 10^6
7. 1.5 x 10^8
8. 1/6
9. 82.50
10. 3.87 x 10^-6
11. 7.75
12. Chicago Cubs
13. 0.000857
14. 3.141..(and it continues, y'know, pi.)
15. 5/11 (nOT 1/45.)
16. 0.16 (16 has a line on top)
17. 2 5/8
18. -52/63 (I think??)
19. 5/36
20. 1 16/21
21. -1/8
22. 4/9
23. 3
24. 4 4/9
A. 75 × 10–4
B. 7.5 × 10–3
C. 7.5 × 10–4***
D. 7.5 × 10–5
f0r futur3 r3fr3nc3 :)