Algebraic Thinking Puzzle

What is the reverse of multiplication?

• Addition

• Subtraction

• Division

• Fraction

If 3 X = 27, what is X?

• 9

• 81

• 27

• 6

• Multiply by 5

• Divide by 8

• Multiply by 8

• Subtract 5

What happens to a number when it moves across the equal sign?

• It disappears

• It remains the same

• It changes operation (multiplication ⇄ division, addition ⇄ subtraction)

• It gets bigger

If 25% of a number is 50, what is the number?

• 100

• 200

• 150

• 250

Which of these represents reverse solving?

• Solving step by step from start

• Checking the answer after solving

• Guessing numbers

• Working backward from the final answer