# MATHEMATICS 7: TEST (Q1)

## Quiz by Maribel Marzan

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- Q1
Which set of operations is being described by the shaded part?

none of the above

intersection

union

difference

20s - Q2
The absolute value of -3 is ___ to the absolute value of 3.

$=$

$>$

$\backslash ge$

$\backslash approx$

20sM7-1-i1 - Q3
The initial temperature was 24°C and it drops by 2°C. Which of the following shows how to compute the final temperature?

(-24°C) + (-2°C) = -26°C

24°C + (-2°C) = 22°C

(-24°C) + (-2°C) = -22°C

24°C + 2°C = 26°C

20sM7-1-i1 - Q4
Is the absolute value of non-zero number always positive?

Maybe

cannot be determined

yes

No

20sM7-1-i1 - Q520s
- Q6
A janitor fish was seen moving at 21 m below Marikina River level. It rose by 21 m. Where is the present location of the janitor fish?

21 m above the Marikina River level

21 m below the Marikina River level

cannot be seen anywhere

at the surface of the Marikina River

20sM7-1-i1 - Q7
Which of the following describes an absolute value?

It is the distance from the reference point which is zero on a number line.

It is the distance from a given number’s counterpart on the other side of the reference point which is zero on a number line.

It is the distance from the first number to the right of the reference point which is zero.

It is the non-positive distance to its negative on a number line.

20sM7-1-i1 - Q8
How opposite numbers are being described?

two numbers that are both on the left side of the reference point which is zero on a number line

two numbers of similar signs and similar distance from the reference point which is 0

two numbers that are of different distance from the reference point which is zero

two numbers that are of equal distance from the reference point, which is zero, but located on different sides of zero on a number line

300sM7-1-i1 - Q9
Which of the following represents“all elements that are in A but not in B”?

$\backslash left(A\backslash cup\; B\backslash right)$

$A-B$

$B-A$

$\backslash left(A\backslash cap\; B\backslash right)$

20sM7-1-i1 - Q1020s
- Q1120s
- Q12
The method of listing all the possible elements on a set.

Descriptive

Roster

Set-Builder Notation

Well-defined

20s - Q13
Choose the correct answer.

SET OF PET ANIMALS

SET OF WATER ANIMALS

SET OF FARM ANIMALS

SET OF WILD ANIMALS

20s - Q14
Which set is described by {x is a prime number less than 15 }

{1, 3, 5, 7 , 11, 13}

{2, 3, 5, 7, 11, 13}

{3, 5, 7 ,9, 11, 13}

{1, 3, 5, 7 ,9, 11, 13}

20s - Q15
It is the object inside the given set.

Subset

Things

Element

Set

20s