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Lesson 14

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Lesson 14

The Number Line:

Negative Numbers

Notes

Mental Math

Links

Activity

Proficiency

Homework

Practice

- Count up and down by ¼’s between ¼ and 6
- 8 x 400360 + 230
- 6 x 30001250 - 1000
- $7.50 + $7.50$10 - $7.50
- Start with 10. add 2; divide by 3; multiplied by 4; then subtract 5. What is the answer?

0

-8 -7 -6-5 -4 -3 -2-1 0 1 2 3 4 5 6 7 8 9

- Notes

Positive numbers- the points to the right of zero

Negative numbers- points to the left of zero

Integers- Positive & negative numbers and 0

0

-2 0 1

- Example #1
Arrange these numbers in order from least to greatest

0, 1, -2

Example #2

Compare: -3 -4

Next

0

Order matters and subtraction. Start at 2 and count to the left five integers. You should end up at - 3

- Example #3
- Subtract 5 from 2

-4-3-2 -1 0 1 2 3 4 5 6 7 8 9 10

What number is 7 less than 3?

-5 -4 -3 -2 -1 0 1 2 3 4 5 6 7

- <
- >
- =
- None of the above
- All of the above

- 0
- 6
- -3
- -6
- None of the above

- -5
- 5
- 0
- 15
- None of the above

- 13
- 3
- 40
- -3
- None of the above

- True
- False

- 186
- 0
- 374
- -186
- None of the above

0

http://www.math.com/school/subject1/lessons/S1U4L6GL.html

Select level 4

http://www.kidsmath.com/e_int.html

0

0

The Answer is… A

N – 36 = 12 - 3

0

0

The Answer is… A

Change each fraction to a decimal, the compare.

A3/8 = .375; .38; 2/5= .4; 4/9 = .44; .49

B.38; 2/5 = .4; 3/8 = .375 (stop)

C.38; .49; 3/8 = .375 (stop)

D.49; .44 (stop)

0

A dot cube has six faces. Where two faces meet, there is an edge. How many edges does a dot cube have?

0

Lesson 14

Practice A-L

Complete #’s 1-30