MathematicsFreePrintable

Decimal Riddle Challenge Worksheet

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Decimal Riddle Challenge Worksheet worksheet preview

Decimal Riddle Challenge Worksheet

Detective with magnifying glass solving puzzles

🔍 Part 1: Solve the Decimal Problems

Instructions: Solve each decimal problem below. Use the letter code to find the answer for each problem. Write the corresponding letter in the boxes at the bottom to reveal the riddle answer!

1. 4.5 + 2.5 = _______
Answer: 7.0 (4.5 + 2.5 = 7.0)
2. 9.0 - 3.5 = _______
Answer: 5.5 (9.0 - 3.5 = 5.5)
3. 2.0 × 3 = _______
Answer: 6.0 (2.0 × 3 = 6.0)
4. 8.0 ÷ 4 = _______
Answer: 2.0 (8.0 ÷ 4 = 2.0)
5. 1.50 + 1.50 = _______
Answer: 3.0 (1.50 + 1.50 = 3.0)
6. 10.0 - 4.0 = _______
Answer: 6.0 (10.0 - 4.0 = 6.0)

🗝️ Part 2: Decode the Riddle

Letter Code:

2.0 = A     3.0 = B     5.5 = C     6.0 = D     7.0 = E

Riddle: What has keys but can't open locks? The letters from your answers will help you find the solution!

Write the letters from your answers in order (problems 1-6):

____   ____   ____   ____   ____   ____

(#1)    (#2)    (#3)    (#4)    (#5)    (#6)

The answer to the riddle is: ________________

Hint: The letters you wrote down will spell out a word that is a common object found in music!

🎯 Part 3: Create Your Own

Bonus Challenge: Create your own decimal problem that equals 4.0. Show your work!
What letter would you assign to the answer 4.0? ____

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