Students identify three-digit numbers represented with base-ten blocks and use their answers to solve a mystery riddle! Each task card shows hundreds, tens, and ones for students to count and match to a number on the included recording page.

As students solve the cards, they color the corresponding numbers. The completed pattern reveals the answer to the riddle.

Students will practice:

• Counting hundreds, tens, and ones
• Identifying numbers represented with base-ten blocks
• Connecting visual models to standard form
• Understanding the value of each digit
• Working with three-digit numbers to 1,000

This activity is ideal for second or third grade. Use it for independent practice, partner work, math centers, small-group instruction, or place value review.