WorksheetsInterest, Scientific Notation, and MAD
Total questions: 25
Worksheet time: 2hrs 34mins
Name
Class
Date
1.
Dan borrowed $2,000 for 6 years at 12% annual simple interest rate. How much interest did he earn?
a)
$120
b)
$144
c)
$1,200
d)
$1,440
2.
Sam borrowed $4,500 for 2 years and had to pay $630 simple interest at the end of that time. What rate of interest did he pay?
a)
6%
b)
7%
c)
8%
d)
9%
3.
Mr. Peterson paid $1,020 in interest for a loan, which was given to him at a rate of 5% for 3 years. How much money did he borrow originally?
a)
$5,400
b)
$6,800
c)
$3,240
d)
$14,620
4.
Emilio borrows $1200 from a bank with 8% simple interest per year. How much will he have to pay back total in 2 years?
a)
$150
b)
$192
c)
$1350
d)
$1392
5.
Jay'den earned $475 from mowing lawns last summer. He deposited this money in an account that pays an interest rate of 3.8% compounded annually. What will be his balance after 15 year?
a)
$827.52
b)
$831.10
c)
$839.45
d)
$846.80
6.
The Arnold's took out a loan for $195,000 to purchase a home. At a 4.3% interest rate compounded annually, how much total will they have paid after 30 years?
a)
$412,749.79
b)
$529.305.61
c)
$689,546.99
d)
$640,891.53
7.
Bruno was given $2000 when he turned 3 years old. His parents invested it at a 2% interest rate compounded annually. No deposits or withdrawals were made. Which expression can be used to determine how much money Bruno had in the account when he turned 16?
a)
2000(1+0.02)13
b)
2000(1-0.02)13
c)
2000(1+0.02)16
d)
2000(1-0.02)16
8.
Find the total amount in the account to the nearest cent if the interest is compounded annually.
$2750 at 8% for 2 years
$2750 at 8% for 2 years
a)
$2200.00
b)
$3207.60
c)
$8910.00
d)
$2750
9.
How would you write 564,000,000 in scientific notation?
a)
5.64 x 10-7
b)
5.64 x 106
c)
5.64 x 108
d)
56.4 x 107
10.
How do you write
8.317 x 106
in standard form?
8.317 x 106
in standard form?
a)
8,371,000
b)
83,170,000
c)
837,100
d)
8,317,000
11.
How many zeros would be in this number if written in standard form?
6.47 x 1011
6.47 x 1011
a)
11
b)
9
c)
10
d)
12
12.
Write 0.00000707 in scientific notation.
a)
7.07 x 10-6
b)
7.07 x 106
c)
707 x 108
d)
707 x 10-8
13.
Write 2.08 x 102 in standard form.
a)
208
b)
0.0208
c)
20,800
d)
0.208
14.
How would you write 50,000 in scientific notation?
a)
50 x 105
b)
5.0 x 104
c)
5.0 x 103
d)
0.5 x 103
15.
Express the following in scientific notation:
0.0000002203
0.0000002203
a)
.02203 x 107
b)
22.03 x 10-6
c)
2.203 x 10-7
d)
22.03 x 106
16.
What is the first step when calculating the Mean Absolute Deviation?
a)
Find the distance each value is from the mean (subtract).
b)
Find the mean of the distances after you have subtracted.
c)
Find the mean of the data.
d)
Put the numbers in order from greatest to least.
17.
What is the Mean Absolute Deviation?
a)
The mean of the data
b)
The absolute value of the mean
c)
The variation of data values around the mode
d)
The average distance between the data values and the mean
18.
What is the second step when calculating the Mean Absolute Deviation?
a)
Find the distance each value is from the mean (subtract)
b)
Find the mean of the distances after subtracting
c)
Find the mean of the data
d)
Put the numbers in order from greatest to least.
19.
What is the third step when calculating the Mean Absolute Deviation?
a)
Find the distance each value is from the mean (subtract).
b)
Find the mean of the distances after subtracting.
c)
Find the mean of the data
d)
Put the numbers in order from greatest to least.
20.
Find the Mean Absolute Deviation: 10, 9, 3, 8, 10. The Mean is 8.
a)
3
b)
5
c)
1
d)
2
21.
Find the Mean Absolute Deviation: 5, 11, 2, 7, 16. The Mean is 8.2
a)
3.2
b)
2.8
c)
1.2
d)
4.2
22.
Which mean absolute deviation would be more consistent? 4.2 or 8.5?
a)
4.2
b)
8.5
23.
When calculating the mean absolute deviation, you can include negative numbers for the distance a number is from the mean.
a)
true
b)
false
24.
Which of the following situations would result in more earned interest?
$500 at 2% for 3 years earning simple interest OR
$500 at 1.5% for 2 years earning compound interest
$500 at 2% for 3 years earning simple interest OR
$500 at 1.5% for 2 years earning compound interest
a)
Compound interest would earn $14.89 more.
b)
Simple interest would earn $131.25 more.
c)
Simple interest would earn $14.89 more.
d)
Compound interest would earn $131.25 more.
25.
In ____________ interest, the money earned is added back to the principal, which results in the principal increasing.
a)
simple
b)
compound
c)
rate
d)
time
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