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This Multiplying By 10 100 drill has 40 problems for Grade 2. Superheroes theme. Answer key included.
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Max discovered the evil villain's hidden vault containing 10 locked treasure chests. He must unlock them all before the fortress self-destructs!
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Page 1 — Drill
Page 2 — Answer Key
What's Included
About this Grade 2 Multiplying By 10 100 Drill
Multiplying by 10 and 100 is a foundational shortcut that transforms how second graders think about numbers and place value. At this age, students are developing number sense and beginning to see patterns—multiplying by 10 and 100 teaches them that numbers can be manipulated in predictable ways rather than requiring lengthy skip-counting or repeated addition. This skill directly supports real-world math like counting coins (10 pennies = 1 dime), measuring classroom supplies, or understanding prices at stores. When children grasp that 3 × 10 simply means "3 tens," they're building mental flexibility and confidence that will underpin multiplication fluency in later grades. Mastering this pattern also reduces cognitive load, freeing up working memory for more complex multi-step problems. Most importantly, it helps students see themselves as capable mathematicians who can discover rules and shortcuts—a critical mindset at age 7 and 8.
What your student will practice
- Recognize and apply the pattern that multiplying by 10 adds one zero to a number
- Multiply single-digit and two-digit numbers by 10 with accuracy and automaticity
- Multiply single-digit numbers by 100 and understand the place value shift
- Transfer the 10 and 100 multiplication pattern to new problems independently
Common mistakes to watch for
The most common error Grade 2 students make is randomly adding zeros without understanding why—for example, writing 4 × 10 = 400 instead of 40, or confusing the pattern and writing 4 × 10 = 44. Watch for students who can recite "just add a zero" but cannot explain what that zero represents in terms of tens or place value. Another frequent mistake is inconsistency: a child might correctly solve 5 × 10 but then write 6 × 10 = 60.6 or struggle when the problem includes a two-digit number like 12 × 10. The underlying issue is that they've memorized a rule without connecting it to the actual grouping of tens happening in the multiplication.
Take your child shopping or use toys and objects at home to practice grouping by tens. For example, say "If one superhero action figure costs $10, how much would 3 cost?" or "We have 10 crayons in each box—if we have 4 boxes, how many crayons total?" Have them physically group objects into sets of 10 and count the total, then write the multiplication sentence (4 × 10 = 40) directly below. This concrete-to-abstract bridge helps them see that the zero isn't magic—it represents an entire group of ten that they've actually counted.