Max Rescues the Farm: Multiply by 10 and 100!

About this Grade 2 Multiplying By 10 100 Drill

Multiplying by 10 and 100 is a gateway skill that helps second graders see patterns in how numbers work, which is the foundation for all future multiplication and place value understanding. At ages 7–8, children's brains are ready to notice that 3 × 10 always equals 30, and this recognition builds their confidence with bigger numbers. This skill also connects directly to money (counting dimes and dollar bills), measuring (10 centimeters, 100 millimeters), and everyday situations like organizing farm animals into groups of 10. When students grasp multiplying by 10 and 100, they develop mental math strategies that make harder problems feel manageable. Most importantly, they begin to understand that multiplication isn't mysterious—it follows predictable, logical rules they can use independently.

What your student will practice

• Recognize that multiplying any number by 10 adds a zero to that number
• Apply the ×10 and ×100 pattern to solve single-digit and two-digit multiplication problems
• Use skip-counting and place value knowledge to verify multiplication by 10 and 100

Common mistakes to watch for

The most common error is when students write 3 × 10 = 310 instead of 30, simply appending the zero without understanding the place value shift. Another frequent mistake is confusing 3 × 10 with 3 + 10, giving an answer of 13. Some children also struggle when multiplying by 100, forgetting to add two zeros and writing 5 × 100 = 510 instead of 500. You can spot these errors by having the child explain their thinking aloud or use base-ten blocks to show the groups—they'll quickly see when the number doesn't match.