Big math help!!!!!! Can someone please help???

Question

Ok so theres is a math test I have and I just cant figure it out can someone please help!! Thank you so much!!! =]

1. -4_____-5 Which one < > or =

2. -2_____ 0 Which one < > or =

3. |-7| ______ |7| Which one < > or =

Numbers 4 - 9 are my answer correct?

4. -5 + 9 = 4

5. -6 + (-3) = -9

6.-7 - (-4) = -11

7.-17 - 12 = -29

8.-3 * (-31) = -34

9. 84 / (-12) = 72

and last but not least?

10. The pages of a book are numbered from 1 to 128. How many page numbers contain the digit 6?

19 pages

20 pages

21 pages

22 pages

Answer 1

1. &gt; (greater than)

2. &lt; (less than)

3. = (equal to)

It will help you to make a number line for the first three. =]

6.

-7 - (-4) does not equal -11. Two negatives make a positive, so then it would be written like this:

-7 + 4 = ?

Answer is -3.

8.

-3 * (-31) is not -34. Multiplying two negatives make a positive. And also, you added in this problem, when the * means multiply (unless you typed it wrong lol.)

Answer is 93.

9.

84/(-12) is not 72. When dividing a negative and a positive, the answer is negative (same goes for multiplying). Also, the / means divide.

Answer: -7.

The rest are correct :D.

10. 21 pages. I divided 128 by 6 and got 21.

Answer 2

&gt; the wider part means greater

and the narrower means less than.

Think of the Numbers on a line  with 0 your neutral point if you get confused which is less or greater.

They are all less than. &lt;

Your answers are correct except for 8 and 9.

If 8 is supposed to be -3-(-31)=-34 it is right, but you have -3*(-31)

9. 84/ (-12) = -7

10.21 pages  

Answer 3

1.&gt;

2.&lt;

3.=

4.correct

5.correct

6.incorrect -3

7.correct

8.incorrect 93

9.incorrect -7

10.i&#039;m not sure

Answer 4

1. -4__&gt;___-5 Which one &lt; &gt; or =

2. -2___&lt;__ 0 Which one &lt; &gt; or =

3. |-7| ___&lt;___ |7| Which one &lt; &gt; or =

Numbers 4 - 9 are my answer correct?

4. -5 + 9 = 4    

5. -6 + (-3) = -9

6.-7 - (-4) = -11

7.-17 - 12 = -29

8.-3 * (-31) = -34

9. 84 / (-12) = 72

yea i think they are all right you should use a caculator

and last but not least?

10. The pages of a book are numbered from 1 to 128. How many page numbers contain the digit 6?

19 pages

20 pages

21 pages   this one!!

22 pages

hoped that helped!!

Answer 5

1. &gt;

2. &lt;

3. =

4. correct

5. correct

6. -3

7. correct

8. 93

9. -7

Answer 6

1. -4 &gt; -5 when we compare negative numbers, the inequality is the opposite to the one with positive numbers, i.e. -4 &gt; -5 because 4&lt;5

2. -2 &lt; 0 if a number has a minus in front of it, it is negative and it is smaller than 0

3. |-7| = |7| absolute values of opposite numbers are always equal

4. correct

5. correct

6. wrong - you have -7- (-4) = -7 +4= -3

7. correct

8. wrong - if it was addition and not multiplication, you would be right. However, here we have multiplication. Here you multiply the numbers as if they were positive and then use the rule:

positive*positive=positive

positive*negative=negative

negative*negative=positive

so -3* (-31) = 93

9. wrong - it is the same as in 8. but here we have division instead of multiplication. Use the same rules:

84/ (-12)= -7

10. Here you just count the pages:

The first one with the digit 6 is page 6, then 16, then 26, 36, 46, 56, then here is the tricky part - all pages from 60 to 69 contain the digit 6. then we have 76, 86, 96, 106, 116 and 126. Then we count the pages we&#039;ve listed and we get 22.

Hope this helped :)

Answer 7

O.K - here&#039;s the number line

             &lt;----|----|----|----|----|----|----0----...

&lt;--forever     -6  -5  -4  -3  -2  -1   0    1   2   3   4   5      --&gt; forever

              &lt;--smaller                                      bigger--&gt;

              &lt;--minus                                           plus--&gt;

So

a - (-b) means a + b!  because the FIRST minus sends us LEFT on the number line but the SECOND MINUS forces us to reverse and go RIGHT on the number line

RULES for SIGNED NUMBERS

NEGATIVE x NEGATIVE = POSITIVE  

NEGATIVE /  NEGATIVE = POSITIVE

POSITIVE x POSITIVE = POSITIVE

POSITIVE /  POSITIVE = POSITIVE

NEGATIVE x POSITIVE = NEGATIVE

NEGATIVE /  POSITIVE = NEGATIVE

POSITIVE x NEGATIVE = NEGATIVE

POSITIVE /  NEGATIVE = NEGATIVE

Process:

(1) Do the math but ignore the signs (for now)

(2) Look at the chart above and figure out what the FINAL sign must be

(3) Have more than 2 signs?  Work through them in PAIRS until you&#039;ve resolved them all.

Check Problem #8 and #9 - both calculations and signs need attention

For Problem #10 -

Here&#039;s the logic:

There&#039;s the following &quot;groups&quot; if you group by 10&#039;s

01-10

11-20

21-30

31-40

41-50

51-60

61-70

71-80

81-90

91-100

101-110

111-120

121-128

Now, think about it.

In EACH GROUP, how many times will you see a number with &quot;6&quot; in it?

01-10 - just one (6)

11-20 - just one (16)

21-30 - just one (26)

...

51-60 - TWO (why????) &#039;cuz there&#039;s 56 AND 60

I think you can figure out the rest now.

Hope this helps!