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Lesson 14. The Number Line: Negative Numbers. Notes. Mental Math. Links. Activity. Proficiency. Homework. Practice. Mental Math. 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

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Lesson 14

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Lesson 14

Lesson 14

The Number Line:

Negative Numbers


Lesson 14

Notes

Mental Math

Links

Activity

Proficiency

Homework

Practice


Mental math

Mental Math

  • 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?


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-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


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-2 0 1

  • Example #1

    Arrange these numbers in order from least to greatest

    0, 1, -2

Example #2

Compare: -3 -4

Next


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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


Compare 8 6

Compare: -8 -6

  • <

  • >

  • =

  • None of the above

  • All of the above


What number is opposite of 3

What number is opposite of 3?

  • 0

  • 6

  • -3

  • -6

  • None of the above


What number is 5 less than 0

What number is 5 less than 0?

  • -5

  • 5

  • 0

  • 15

  • None of the above


Lesson 14

5 – 8 =

  • 13

  • 3

  • 40

  • -3

  • None of the above


All 5 numbers below are integers true or false 3 0 2 10 50

All 5 numbers below are integers. True or False?-3, 0, 2, -10, 50

  • True

  • False


The desert floor was 186 feet below sea level use a negative number to indicate that number

The desert floor was 186 feet below sea level. Use a negative number to indicate that number

  • 186

  • 0

  • 374

  • -186

  • None of the above


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

Select level 4

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


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The Answer is… A

N – 36 = 12 - 3


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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)


Activity

Activity

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


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Lesson 14

Practice A-L

Complete #’s 1-30


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