Teacher: Valéria Kumoto
CORE-E
International School
Student: _____________________________________________________
Date: _____\_______\ 2021
Instructions
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Good Luck!
and
be Happy!
😊
This assessment is individual
Write with readable handwriting
The calculations must be done by pencil and the answers in ink
All calculations are required
This assessment will last 1h40min
Goals/ Indicators
Questions
1. Calculate percentages relating two amounts and calculate amounts relating
1,2
a percent and another amount,
2. Represent percentages less than and greater than 100% visually,
1
3.
4.
5.
6.
7.
Write percentage in all of its forms,
Solve percentage problems,
Solve successive decrease or increase problems,
Calculate the exponentiation of Integers,
Operate with properties of exponentiation,
Type of exam
Retake - Trimestral test
1, 2, 3
5, 6, 7 , 8
4
9, 10
9, 10
Student Grade:
1. (1 point) Use the method of your choice to calculate what is requested.
Concept (A to D)
CORE-E
International School
Teacher: Valéria Kumoto
Page part of Test/ Exam / Assessment
2. (1 point) Complete the double number to line show percentages of $50.
3. (1 point) At a school, 40% of the seventh-grade students said that hip-hop is their favorite
kind of music. If 100 seventh-grade students prefer hip hop music, how many seventh-grade
students are at the school? Explain or show your reasoning.
4. (1 point) Read the text below and answer the items a and b.
b) Find the price that Carla need to pay.
a) Is Carla’s reasoning correct? Explain.
a) I
s
C
a
r
l
a
'
2
CORE-E
Teacher: Valéria Kumoto
International School
Page part of Test/ Exam / Assessment
5. (1 point) The price of a shirt is $45.5, but you have a coupon that lowers the price by 60%. What is the
price of the shirt after using the coupon?
6. (1 point) You pay $555 per month rent. Your landlord decides to increase your rent by 12%. How much
more rent do you have to pay per month? What will be the new rent per month?
7. (1 point) Barry earns $1300 a month. He spends 30% of this money on rent and 12% on bills.
How much of the $1300 has he left?
8. (1 point) In 2000 the population of a country was 4,580,000. By 2015, the population had
increased by 18% . Find the population in 2015.
3
CORE-E
International School
Teacher: Valéria Kumoto
Page part of Test/ Exam / Assessment
9. (1 point) Apply the Potentiation Properties and simplify the expressions below
𝒂) 22 ∙ 21 =
𝒃) 23 ∙ 24 ∶ 22 =
𝒄) (𝑥 2 )2 ∙ (𝑥 4 )4 ∶ (𝑥 1 )4 =
𝑎13 ∙ 𝑎−4 ∙ 𝑎−3
𝒅)
=
𝑎 2 ∙ 𝑎1 ∶ 𝑎 2
10. (1 point) Consider that a = 23 and b = 22 and solve the expressions below.
a) a ∙ b =
b) a : b =
c) (𝑎)3 ∶ (𝑏)2 =
4