Variables in Kindergarten Math: Learn Unknown Values

Question 1

What letter is used to show we don't know the answer?

Accepted Answer

X

Answer

A

Answer

Y

Answer

Z

Question 2

Which of these shows the number we don't know is 5?

Accepted Answer

x = 5

Answer

x = 4

Answer

x = 6

Answer

x = 7

Question 3

If you have 3 apples and your friend gives you some more, how many apples do you have now?

Accepted Answer

3 plus the number your friend gives you

Answer

The number your friend gives you take away 3

Answer

3 take away the number your friend gives you

Answer

The number your friend gives you plus 3

Question 4

Which of these is NOT a letter we can use to show we don't know the answer?

Accepted Answer

1

Answer

A

Answer

B

Answer

X

Question 5

What is another name for the numbers we don't know?

Accepted Answer

Unknown

Answer

Number

Answer

Symbol

Answer

Equation

Question 6

What letter in the equation '5 + x = 10' stands for the unknown number?

Accepted Answer

x

Answer

5

Answer

10

Question 7

Which number completes the equation '3 + ___ = 7'?

Accepted Answer

4

Answer

2

Answer

3

Question 8

Which number is missing in the pattern '2, 4, 6, ___, 10'?

Accepted Answer

8

Answer

7

Answer

9

Question 9

What does the symbol '=' mean in math?

Accepted Answer

Equal to

Answer

Greater than

Answer

Less than

Question 10

Which equation is correct?

Accepted Answer

x + 3 = 5

Answer

x - 3 = 5

Answer

x = 5 + 3

Question 11

In the equation 5 + ? = 10, what does the ? stand for?

Accepted Answer

The number we don't know

Answer

The answer

Answer

The sum of 5 and the number we don't know

Question 12

Which of these is a variable?

Accepted Answer

x

Answer

5

Answer

100

Question 13

In the story 'There are 5 birds on a tree branch. 3 more birds fly in. How many birds are there now?', what does the variable represent?

Accepted Answer

The total number of birds now

Answer

The number of birds on the branch at the beginning

Answer

The number of birds that flew in

Question 14

In the equation x - 5 = 2, what is the value of x?

Accepted Answer

7

Answer

5

Answer

9

Question 15

Which of these is a letter that stands in for a number we don't know yet?

Accepted Answer

X

Answer

5

Answer

Cat

Answer

Blue

Question 16

We know that the length of a rectangle is 'l'. Which of these shows us how to find the area of the rectangle?

Accepted Answer

l x w

Answer

l

Answer

2l

Answer

l + w

Question 17

Which of these shows that 'x' is bigger than 'y'?

Accepted Answer

x > y

Answer

x < y

Answer

x = y

Answer

x - y

Question 18

We have a number, 'n'. Which of these shows us how to find a number that is 5 more than 'n'?

Accepted Answer

n + 5

Answer

n - 5

Answer

5n

Answer

n/5

Question 19

What does a variable mean?

Accepted Answer

A letter that stands for a number we don't know

Answer

A number that we already know

Answer

A symbol that means we should add

Question 20

What is a variable?

Accepted Answer

A letter like 'x' that can stand for any number

Answer

A number

Answer

A word like 'dog'

Answer

A symbol like '+' or '-' that shows an operation

Question 21

What letter is a variable that can stand in place of an unknown number?

Accepted Answer

X

Answer

A

Answer

N

Answer

Z

Question 22

There are 5 birds sitting on a tree branch. If 3 more birds fly in and join them, how many birds are there now?

Accepted Answer

8

Answer

5

Answer

10

Answer

15

Question 23

Which of the following shows that there are less than 10 toys in the box?

Accepted Answer

x < 10

Answer

x > 10

Answer

x = 10

Answer

x ≥ 10

Question 24

Which of these shows that the number y is 5 less than the number x?

Accepted Answer

y = x - 5

Answer

y = x + 5

Answer

y = 5 - x

Answer

y = x ÷ 5

Question 25

What is the next number in the sequence 2, 4, 8, 16, ...?

Accepted Answer

24

Answer

30

Answer

32

Answer

48

Question 26

Which of these is not a variable?

Accepted Answer

5

Answer

X

Answer

N

Answer

?

Question 27

Which of these is the best way to show the number of students in a classroom?

Accepted Answer

X

Answer

15

Answer

S

Answer

?

Question 28

Which of these is NOT a letter we can use to show a missing number?

Accepted Answer

1

Answer

x

Answer

a

Answer

y

Question 29

We have a math problem: 2 * y = 8. What does the letter y stand for in this problem?

Accepted Answer

The number we don't know yet

Answer

The total number

Answer

The number we're multiplying

Answer

The number we're dividing

Question 30

Which of these shows how we use letters to stand for missing numbers?

Accepted Answer

x + 5 = 10

Answer

5 + 5 = 10

Answer

x = 5

Answer

10 - 5 = 5

Question 31

Let's look at this math problem: y - 3 = 7. What number is being subtracted?

Accepted Answer

The number we're subtracting

Answer

The number we don't know yet

Answer

The total number

Answer

The number we're adding

Question 32

We use the letter X to show an unknown number. Which of these is X?

Accepted Answer

X

Answer

A

Answer

Z

Question 33

Which of these is a letter we can use to show an unknown number?

Accepted Answer

x

Answer

5

Answer

$

Question 34

In the equation y = 5, what does the letter y stand for?

Accepted Answer

An unknown value

Answer

A number

Answer

A constant

Question 35

Which of these is NOT a letter we use to show an unknown number?

Accepted Answer

10

Answer

x

Answer

y

Question 36

We have an equation: 2a = 10. What number can we put in place of a to make the equation correct?

Accepted Answer

5

Answer

2

Answer

10

Question 37

We have two letters: x and y. Which of these shows that x and y are the same?

Accepted Answer

x = y

Answer

x + y = 10

Answer

y - x = 0

Question 38

We have an equation: b + 5 = 12. What number can we put in place of b to make the equation correct?

Accepted Answer

7

Answer

5

Answer

12

Question 39

What letter stands in for an unknown value in math?

Accepted Answer

x

Answer

A

Answer

5

Answer

+

Question 40

If x + 5 = 8, what is the value of x?

Accepted Answer

3

Answer

2

Answer

8

Answer

10

Question 41

How do we solve for the missing number in the equation: ? + 4 = 7?

Accepted Answer

Add 4 to both sides

Answer

Take away 4 from both sides

Answer

Divide both sides by 4

Answer

Multiply both sides by 4

Question 42

Which letter is used to show we don't know the number?

Accepted Answer

x

Answer

A

Answer

5

Answer

dog

Question 43

We have 5 birds on a branch. 3 more birds come. If we use x for the number of birds we don't know, which equation shows this?

Accepted Answer

x + 3 = 8

Answer

x + 5 = 8

Answer

5 - x = 8

Answer

3 - x = 8

Question 44

In n + 5 = 12, what does n stand for?

Accepted Answer

The number we don't know

Answer

5

Answer

12

Answer

The answer

Question 45

What is a good way to find the missing number in x + 4 = 7?

Accepted Answer

Subtract 4 from 7

Answer

Add 4 to 7

Answer

Multiply 4 by 7

Answer

Divide 7 by 4

Question 46

I have 3 times as many crayons as my friend. If my friend has 4 crayons, how many crayons do I have?

Accepted Answer

3x = 4

Answer

4x = 3

Answer

x + 3 = 4

Answer

4 - x = 3

Question 47

Which letter in the equation 2x + 5 = 15 represents the unknown value?

Accepted Answer

x

Answer

5

Answer

2

Answer

15

Question 48

What do we use to represent the unknown number in the equation 10 - y = 5?

Accepted Answer

? box

Answer

10 marbles

Answer

5 marbles

Answer

Equation

Question 49

If there are 'n' birds on a tree branch, and 3 more birds come, how many birds are there in total?

Accepted Answer

n + 3

Answer

n * 3

Answer

3 - n

Answer

n - 3

Question 50

If there are 4 baskets with 'a' apples in each basket, what is the total number of apples?

Accepted Answer

4a

Answer

a + 4

Answer

a - 4

Answer

a / 4

Question 51

What is the area of a rectangle with length 'l' and width 'w'?

Accepted Answer

l * w

Answer

l - w

Answer

w / l

Answer

l + w

Question 52

If there are 20 students in the morning and 'n' new students join in the afternoon, what is the total number of students in the class?

Accepted Answer

20 + n

Answer

20 - n

Answer

n * 20

Answer

n - 20