Transcript
8TH GRADE MATH(NUMERATION UNIT)
Jeopardy
JeopardyRational Rational
& & Irrational Irrational
#’s#’s
Square Square and and
Square Square RootsRoots
Cube and Cube and Cube Cube RootsRoots
PythagoreaPythagorean Theoremn Theorem
MiscellaneoMiscellaneousus
200 200 200 200 200
400 400 400 400 400
600 600 600 600 600
800 800 800 800 800
1000 1000 1000 1000 1000
Rational & Irrational #’s - 200
How can all rational numbers be written?
As a ratio ( fraction) a ÷ b
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Rational and Irrational #’s - 400
Which of the following is an irrational number?A. .999B. √36C. -7D. √18
DMenu
Rational & Irrational #’s - 600
Write .03 repeating as a fraction (reduce).
3/99 = 1/33
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Rational & Irrational #’s - 800
Explain why π is an irrational number.
The decimal never stops, it keeps going and going, so you can not make it into a simple fraction.
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Rational & Irrational #’s – 1000
Put these numbers in order from least to greatest.
24/3 √9 5.25 4¾ π -4.3 -√16
-4.3, -√16, √9, π , 4¾ , 5.25, 24/3
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Square and Square Roots - 200
What is the value of 142 ?
196
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Square and Square Roots - 400
The square has an area of 15,876 ft2. What is the length of a side?
126
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15,876
Square and Square Roots - 600
Between what two perfect squares will you find the √19.
16 & 25
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Square and Square Roots - 800
The area of the square is 158 in.2 . Between what two consecutive whole numbers is the length of the sides?
12 & 13
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158
Square and Square Roots – 1000
The city has two square parks. Gordon Turner Park and Ottawa Art Park. They want to fertilize the lawn at both places. Gordon Turner is 380 ft. on each side and Ottawa is 350 on each side. The fertilizer is $10 a jug for Gordon Turner and covers 2500 square feet with each jug. The fertilizer for Ottawa is $14 a jug and covers 2600 square feet with each jug.
Which park costs less to fertilize and by how much?
Gordon Turner costs less to fertilize by $92.00Menu
Cube and Cube Roots - 200
What is the value of 123 ?
1728
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Cube and Cube Roots - 400
The cube has a volume of 2,744 ft3. What is the length of a side?
14
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2,744
Cube and Cube Root - 600
Between what two perfect cubes will you find the ³√173.
125 & 216
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Cube and Cube Roots - 800
The volume of the cube is 52,340in.3 . Between what two consecutive whole numbers is the length of the sides?
37 & 38
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52,340
Cubes and Cube Roots - 1000
The school was doing an excavating project using two dump trucks. One had a box that was 5 ft. for each of the 3 sides. The other was 8 ft. for each of the three sides. The 5 ft. truck costs $0.30 per cubic foot to run per load, while the 8ft. truck costs $0.19 per cubic foot to run per load.
Which truck is cheaper to use and by how much?
The 5 ft. truck by $59.78 a load.Menu
Pythagorean Theorem - 200
State the Pythagorean Theorem
A2 + B2 = C2
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Pythagorean Theorem - 400
What is the length of C?
C 7
24
72 + 242 = C2 49 + 576 = C2 625 = C2 √625 = 25 C=25
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Pythagorean Theorem - 600
What is the length of A?
10 8
A
102 - 82 = A2 100 - 64 = A2 36 = A2 √36 = 6 A=6Menu
Pythagorean Theorem - 800
What is the length of B?
B 26
10
262 - 102 = B2 676 - 100 = B2 576 = B2 √576 = 24 B=24
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Pythagorean Theorem - 1000
On a baseball diamond the bases are 90 ft. apart. What is the distance from home plate to second base in a straight line?
902 + 902 = C2 8100 + 8100 = C2 16200 = C2 √16200 = 127.28 Home plate to second base =127.28 feet
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Miscellaneous- 200
What is the value of 3-4 ?
1/81
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Miscellaneous - 400
What is 250 ?
1
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Miscellaneous - 600
What is – 8 + 5? Also, explain how to solve.
-3; they are opposites so you subtract 8-5 and -8 is bigger so the answer is negative.
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Miscellaneous - 800
Putting the following #’s in the proper spot. -8 , 9, 3/9, 4.25 , 1.23233…., √2 , -10/5,
√64
Whole = √64, 9 Integers = -10/5, -8 Rational = 3/9, 4.25 Irrational = 1.23233…. , √2
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Miscellaneous – 1000
Label which letter would go with which number.
A B C D E F -5 -4 -3 -2 -1 0 1 2 3 4 5 6
-1/9, π, -√17, 10/2, ³√196, -√4
-1/9=C π=D -√17=A 10/2=E ³√196=F -√4=B
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