Find the square root of 196
Add commas between your answers if needed,
The square root of 196 = 14, - 14
100
Which number is written in scientific notation?
20 x 20
20
8.66
8.66 x 10 7
8.66 x 10 7
200
If 2/8 of the students passes the test, how many did not pass the test?
8/8 minus 2/8 = 6/8 did not pass.
200
Which of these are irrational numbers?
__
0. 3 , pi, 0.1678
pi is irrational
Why are the others not irrational?
0.1678
__
0. 3
200
Multiply and divide:
-7 x 8 =
-6 x -3 =
-12 ./. 6 =
-30 ./. -5 =
Multiply and divide:
-7 x 8 = -56
-6 x -3 = 18
-12 ./. 6 = -2
-30 ./. -5 = 6
200
Find the cube root of -729
Add commas between your answers if needed,
-19
The cube root of anegative numbert can never be positive.
200
Is this number written in scientific notation?
4.47 x 14 2
If it is incorrect, fix it!
No
4.47 x 10 2
300
Thirty-five of thirty-eight students take the bus to school every day.
What is the percent of students that take the bus?
35/38 = 92%
300
Write these mixed numbers as fractions.
2.7
__
2.7
Circle the larger one.
2.7 = 2 7/10
__
2.7 = 2 7/9
300
An elevator goes up 16 floors, then it decends 14 floors.
Draw a picture using a number line to show what happened.
Then write an equation.
+ 16 - 14 =
300
The square root of 300 is between which two consecutive integers?
A. 15 and 16
B. 16 and 17
C. 17 and 18
C. 17 and 18
300
Write this number in scientific notation.
82,000,000
82,000,000 = 8.2 x 10 7
400
A piano costs $3900. It goes on sale for 20 % off.
How much will the buyer save?
What is the new cost of the piano?
$3900 x 20% = $780
3900 - 780 = $3120
400
Compare the square root of 7 and 1.8.
square root of 7 > 1.8.
(2.64575....)
400
Which of the situations represents - 66
-The cost of a ticket is $66 more than expected.
-An elevator descends 66 feet.
-An airplane ascends 66 feet.
-You add 66 songs to you itouch
-An elevator descends 66 feet.
400
Multiply exponents:
c 3 x c 4 =
2c 2 x 3c 5 =
c 3 x c 4 = c 7
2c 2 x 3c 6 = 6 c 8
400
Write this number in standard form.
2.3 x 10 8
Add the commas.
230,000,000
Can you read it?
500
Rob wants to buy a $20 DVD that is on sale for 15% off.
He estimates that he will save at least $4.
Is his estimate reasonable?
Show or explain how you know.
$20 x 15% is $3
You could also do mental math.
10% of $20 is $2.
5% would then be $5. So the total would be $3. This seems close.
500
In a number game, Rich was suppose to give the square root of a number. Instead he squared of the number and said 16. What number should Rick have given?
a. 2
b. 4
c. 8
d. 16
2
Which answer was rediculous?
500
A square table top has an area of 369 square inches.
The length of one side is between which two measurements?
A. 17 and 18 inches
B. 18 and 19 inches
C. 19 and 20 inches
D. 20 and 21inches