There are 1,256 students in this school. Express this number in scientific notation
1.256 x 10^3
100
Solve the expression. Write your answer in scientific notation.
(3.7 x 10^9) + (9.04 x 10^9)
12.74 x 10^9 = 1.274 x 10^10
100
Is -2^8 the same answer as (-2)^8? Explain.
No, without parentheses () the answer will be negative, with them the answer will be positive.
200
Write 1 3/5 as a decimal
1.6
200
Estimate the square root of 10 to one decimal place
3.1
200
The mass of Jupiter is approximately 1,900,000,000,000,000,000,000,000,000 kg. Write the mass of Jupiter in scientific notation.
1.9 x 10^27
200
What is the answer in scientific notation
(8.45 x 10^6) + (6.9 x 10^7)
7.745 x 10^7
200
What is the value of 2^-3
1/8
300
Express the fraction 2/9 in decimal form
0.22222....
300
A square house has an area of 225 square feet. How long is each side of the house?
15 ft
300
The mass of a Monarch butterfly is about 9.5 x 10^-3. Write this number in standard form.
.0095
300
Write the answer in scientific notation
(2.1 x 10^4)(6.3 x 10^7)
1.323 x 10^12
300
What is the best name for numbers that describe how far people walk to school a day in miles?
Rational Numbers
400
Evaluate the expression, (149)^0
1
400
Find two square roots of 289
+17 and -17
400
The mass of a paperclip is 0.003. What is this in scientific notation?
3 x 10^-3
400
Humpback whales are known to weigh as much as 8 x 10^4 pounds. The tiny krill they eat weigh only 2.1875 x 10^-3 pounds. Approximately how many times larger than krill are humpback whales?
4 x 10^7
400
Compare 19/5 and the square root of 30
19/5 < square root of 30
500
Compare the decimal forms of 8/9 and 4/5. How are they alike and different?
they both are 0.8 however 8/9 is repeating while 4/5 is terminating
500
Estimate the square root of 125 to the nearest tenth
11.2
500
The diameter of a grain of sand is 2.4E-3. What is the standard notation of a grain of sand?
0.0024
500
A cell phone weighs 1.2 x 10^-2 grams. A paper clip weighs 3 x 10^-4 grams. About how many times larger than the paperclip is the cell phone? Write your answer in scientific notation.
4 x 10^1
500
Name a number between pi and the square root of 20