Evaluate each expression.
Evaluate. State the answer as a decimal.
5/8 - 0.5
0.125
How do you use your calculator to find the square root of a number?
For example find the square of √400?
2, 2nd, ^, #, enter
√400 = 20
Compare the following using <, >, or =.
7.9 x 108 _____ 1.2 x 109
7.9 x 108 < 1.2 x 109
How do you use your calculator to find the value of a base number with an exponent?
For example, what is the value of 164?
#, ^, exponent, enter
164 = 65,536
Bobby bought 4 2/3 pounds of apples for $0.75 per pound. How much did he pay for the apples?
4 2/3 x 0.75 = $3.50
What is 0.875 + 3/20. State the answer as a fractio.
0.875 + 3/20 = 41/40
How do you use your calculator to change a percent to a decimal?
For example, how do I use the calculator to change 15% to a decimal?
#, 2nd, %, enter
15% = .15
Which of the following is/are a perfect square?
80, 124, 256, 36, 149
256, 36
How do you use your calculator to change a decimal to a percent?
For example change 1.75 to a percent.
#, 2nd, >%, enter
1.75 = 175%
Tabitha bought 3.126 pounds of strawberries. If she ate 1.4 pounds, how many pounds does she have left?
3.126 - 1.4 = 1.726 pounds
Change 1 11/20 as a decimal.
1.55
How do you use your calculator to add 3 5/6 + 5.60? State the answer as a decimal rounded to the nearest tenth.
2nd, U n/d, mixed number, +, #, enter
3 5/6 + 5.60 = 9.4
Find the square root. Round to the nearest tenth if necessary.
√175
√175 = 13.2
How many 7/8 cup servings are in a pitcher that contains 8 1/4 cups of fruit punch?
8 1/4 ÷ 7/8 = 66/7 or 9 3/7 servings
Beth has two English Bulldogs. The larger dog weighs 70 1/2 pounds. If the smaller dog weighs 75% as much as the larger dog, find the smallest dog.s weight.
70 1/2 x 75% = 52.875 pounds
What is 17.5% as a fraction?
7/40
How do you use your calculator to change a fraction to a percent?
Change 2/5 to a percent.
#N, n/d, #D, >, 2nd, >%, enter
2/5 = 40%
Write the following number in Scientific Notation.
0.0755
0.0755 = 7.55 x 10-2
How do you use your calculator to change a percent to a fraction?
Change 75% to a fraction.
#, 2nd, %, 2nd, f<>d, enter
75% = 3/4
What is the Exponential Expression and Value of the following:
6x6x6x6x6x6x6x6
Exponential Expression is =68
Value = 1,679,616
What is 0.431 written as a percent?
43.1%
How do you use your calculator to change Scientific Notation to Standard Form?
Change 1.67 x 105 to Standard Form.
#, x10n , exponent, enter
1.67 x 105 = 167,000
Write the following Scientific Notation in Standard Form.
2.4 x 107
24,000,000
How do you use your calculator to Scientific Notation?
What is 1700000 written in Scientific Notation?
mode, arrow over and down and make the Sci blink, enter, clear, # enter
1700000 = 1.7 x 106
Rember to push clear and on then clear to get the calculator out of scientific notation.
Compare and Order the following from LEAST to GREATEST.
33 , 0.27, 30%, 3.2 x 102 , √400
3.2 x 102 , 33, √400, 30%, 0.27