Home
Grade 1Grade 2Grade 3Grade 4Grade 5Grade 6Grade 7Grade 8Grade 9Grade 10Math Themes
Explorers (Grades 1-3)Explorers Elite (1-3)Navigators (Grades 4-6)Navigators Elite (4-6)Challengers (Grades 7-9)Challengers Elite (7-9)Schedule an Evaluation
Mobius MethodFlexible ClassesCompanySupport
Pricing
Sign InJoin

Interest (Simple) - Rate From Interest, Principle, and Time (Level 3)

The topics in this unit focus on introducing simple interest, principle, rate, and time, and how to calculate any of them given the others. Work on practice problems directly here, or download the printable pdf worksheet to practice offline.

View Unit

Interest (Simple) - Rate From Interest, Principle, and Time

Complete these online problems with 80% or 4 correct answers in a row. Results are immediate.

What is the rate in this simple interest situation?

Principle =$900Interest =$90Time =2yrsRate =?%\begin{align*}\text{Principle } &= \$900\\ \text{Interest } &= \$90\\ \text{Time } &= 2\text{yrs}\\ \\ \text{Rate } &= ?\%\end{align*}

Interest (Simple) - Rate From Interest, Principle, and Time Worksheet

Mobius Math Club logo
Math worksheet on 'Interest (Simple) - Rate From Interest, Principle, and Time (Level 3)'. Part of a broader unit on 'Percents and Simple Interest - Practice' Learn online: app.mobius.academy/math/units/percents_and_simple_interest_practice/
1
What is the rate in this simple interest situation?
A LaTex expression showing \begin{align*}\text{Principle } &= \$100\\ \text{Interest } &= \$25\\ \text{Time } &= 1\text{yrs}\\ \\ \text{Rate } &= ?\%\end{align*}
a
29
b
15
c
13
d
31
e
43
f
25
2
What is the rate in this simple interest situation?
A LaTex expression showing \begin{align*}\text{Principle } &= \$100\\ \text{Interest } &= \$140\\ \text{Time } &= 4\text{yrs}\\ \\ \text{Rate } &= ?\%\end{align*}
a
14
b
29
c
62
d
20
e
35
f
17
3
What is the rate in this simple interest situation?
A LaTex expression showing \begin{align*}\text{Principle } &= \$900\\ \text{Interest } &= \$90\\ \text{Time } &= 2\text{yrs}\\ \\ \text{Rate } &= ?\%\end{align*}
a
4
b
9
c
11
d
12
e
7
f
5
4
What is the rate in this simple interest situation?
A LaTex expression showing \begin{align*}\text{Principle } &= \$500\\ \text{Interest } &= \$1125\\ \text{Time } &= 9\text{yrs}\\ \\ \text{Rate } &= ?\%\end{align*}
a
31
b
35
c
17
d
29
e
25
f
15
5
What is the rate in this simple interest situation?
A LaTex expression showing \begin{align*}\text{Principle } &= \$100\\ \text{Interest } &= \$15\\ \text{Time } &= 3\text{yrs}\\ \\ \text{Rate } &= ?\%\end{align*}
a
10
b
7
c
3
d
1
e
5
f
13
6
What is the rate in this simple interest situation?
A LaTex expression showing \begin{align*}\text{Principle } &= \$900\\ \text{Interest } &= \$1890\\ \text{Time } &= 6\text{yrs}\\ \\ \text{Rate } &= ?\%\end{align*}
a
35
b
23
c
44
d
59
e
47
f
5
7
What is the rate in this simple interest situation?
A LaTex expression showing \begin{align*}\text{Principle } &= \$100\\ \text{Interest } &= \$280\\ \text{Time } &= 8\text{yrs}\\ \\ \text{Rate } &= ?\%\end{align*}
a
32
b
35
c
5
d
50
e
26
f
23