Finding Unknown Values

What is the value of B in this equation?
B ÷ 2 = 8

• 10

• 6

• 16

• 4

What should you do to solve for the unknown in this equation?
56 ÷ ₼ = 7

• Multiply 56 and 7

• Add 56 and 7

• Divide 56 and 7

• Subtract 56 and 7

Solve for the unknown: 
20 = ___ x 4

• 5

• 24

• 80

• 16

What is the unknown in this equation?
6 x 3 = 3 x ___

• 18

• 6

• 9

• 21

9 ÷ __ = 9

• 81

• 9

• 72

• 1

Evelyn, Aria, and Scarlett are on a treasure hunt. They find a chest locked with a puzzle that says, 'Solve for x: 5x = 25' to open. Can you help them unlock the treasure?

• x = 10

• x = 3

• x = 2

• x = 5

Answer explanation

To solve for x, divide both sides by 5: x = 25 / 5 = 5. Therefore, x = 5 is the correct answer choice.

Imagine Mason, Abigail, and Aiden are on a treasure hunt. They find a magical door that says, 'Solve this riddle to pass: If 3y = 15, what is the value of y?'

• 3

• 5

• 10

• 7

Answer explanation

To find the value of y, divide both sides of the equation 3y = 15 by 3. This gives y = 15 / 3 = 5. Therefore, the value of y is 5.

Imagine William and Charlotte are on a treasure hunt. They find a magical door that says, 'Solve this riddle to pass: 2z = 10.' What should z be to open the door?

• 2

• 3

• 5

• 8

Answer explanation

To find the value of z, we need to solve the equation 2z = 10. Dividing both sides by 2, we get z = 5. Therefore, the value of z is 5.

Imagine Michael has 4 apples, and altogether they weigh 20kg. What is the weight of each apple?

• 15kg

• 4kg

• 10kg

• 5kg

Answer explanation

To find the value of a, divide both sides of the equation by 4. Therefore, a = 20 / 4 = 5. Hence, the correct value of a is 5.

Evelyn has 7 apples and wants to have a total of 15 apples. How many more apples does Evelyn need to reach her goal?

• 12

• 5

• 10

• 8

Answer explanation

To solve for b, subtract 7 from both sides of the equation: b = 15 - 7 = 8. Therefore, the correct answer is 8.