A cell measures 4.2 x 10^-6 , what is this number in standard notation?
^ means it is an exponent! sorry!
What is 0.0000042
100
Which is larger, 3/5 or 2/3?
What is 2/3
(0.66 is larger than 0.6)
100
Justyn estimated that it would take 2000 grains of salt to make a pound. So, each grain of salt weighs 1/2000 of a pound. In decimal form it would weigh 0.0005. Write that number in scientific notation.
5 x 10^-4
100
Place the numbers in ascending order. 1 1/5, -2 1/8, 0.7, -9/5, -0.75, 5/3
-2 1/8, -9/5, -0.75, 0.7, 1 1/5, 5/3
100
Name the 4 circles discussed in class starting with the smallest circle, counting numbers.
The earth is approximately 9.4 x 10^7 miles away from the sun. What is this number in standard notation?
What is 94,000,000
200
Put in order from least to greatest.
0.35, 30%, - 33%
What is - 33%, 30%, 0.35
negative first, 30% = 0.30, then 0.35
200
Which statement is true and why? a) 2.6 x 10^-2 = -0.026 or b) 3 x 10^3 < 3000 or c) 83,000 = 8.3 x 10^4
c is correct because they equal in standard form
b is wrong (they equal)
a is wrong (there is no negative in front of standard form)
200
List the numbers from greatest to least. -0.2 inch, 1/5 inch, 0.03 inch, 1/3 inch, -3/8 inch
1/3 inch, 1/5 inch, 0.03 inch, -0.2 inch, -3/8 inch
200
-6, -2, and 8 go specifically into what circle? (exclude rational numbers circle)
Integers
300
A bacteria sample measured 0.000735 grams. How is this number expressed in scientific notation?
What is 7.35 x 10^-4
300
What value is between 4/7 and 2/3?
a) 5/8 b) 1/2 c) 4/5
Must explain why using decimals to get points!!
What is
a) 5/8
300
Tanner and Kelsee need to write 2,400,000 using scientific notation. Tanner claims that 2,400,000 = 2.4 x 10^5 and Kelsee claims that 2,400,000 = 2.4 x 10^6. Who is correct and WHY?
Kelsee is correct because the decimal goes between the 2 and 4, and the original decimal point in the standard form moves to the left 6 places. (Tanner is wrong because he counted zeros.)
300
Draw a number line and place the following numbers on it (teacher will check for points). 5/8, -2.75, 16/8, -1/2, and 0.875
number line from -3 to 2, numbers in proper place -2.75, -1/2, 5/8, 0.875, and 16/8 (teacher check)
300
Label the following numbers with the proper category; whole number, counting number, rational number and integer. 170, -4, 1/2, 0, and 8.2
counting, integer, rational, whole, rational
400
Pluto's orbit around the sun is approximately 3,670,000,000 miles. What is this number written in scientific notation?
What is 3.67 x 10^9
400
On a math test, Frances answered 3/4 of the questions correctly, Amy answered 3/5 correctly, Cheryl answered 7/10 correctly and LeSha answered 17/20 correctly.
List the students in order of who answered the most correctly to who answered the least correctly.
What is LeSha, Frances, Cheryl, Amy
400
Write 83,465.207 in scientific notation.
8.3465207 x 10^4
400
Which sign makes the statement true, greater than sign or less than sign? 3.42 x 10^5 ? 3420000
<
400
Is -1/4 a rational number?
yes
500
The sand that I collected from Florida measured 34572.8 milligrams. What is this number expressed in scientific notation?
What is 3.45728 x 10^4
500
If I have numbers in percents, decimals and fractions, what do I have to do before I can put them in order?
What is change the numbers to the same form (example, change them all to decimals)
500
Which is greater and why? 3 x 10^2 or 3 x 10^-2
3 x 10^2 is greater (300 is greater than 0.03)
500
Write the following numbers in scientific notation with the proper sign (less than or greater than) between the numbers to make a true statement. 0.0001663 and 0.0000837
1.663 x 10^-4 > 8.37 x 10^-5
or 8.37 x 10^-5 < 1.663 x 10^-4
500
What makes a number Irrational? Give an example for double points
Decimal is not terminating or repeating. examples could be pi, square root of 2, etc.