Max Conquers the Jungle: Times 10 and 100!

About this Grade 1 Multiplying By 10 100 Drill

Multiplying by 10 is a foundational concept that helps first graders recognize patterns and build mental math flexibility. At ages 6-7, children are developing number sense and beginning to see how numbers relate to each other. When a student multiplies by 10, they're learning that adding a zero changes the size of a number in a predictable way—a skill that connects directly to place value, which is critical for all future math. This concept also appears in everyday moments: counting coins (10 pennies, 20 pennies, 30 pennies), organizing objects into groups, and understanding how quantities grow. Practicing multiplying by 10 and recognizing patterns with 100 strengthens a child's ability to think flexibly about numbers and prepares them for multiplication and division. Rather than memorizing isolated facts, students learn to see the logic behind the operation.

What your student will practice

• Skip-count by tens to build automaticity with multiplying by 10
• Recognize that multiplying by 10 adds a zero to the ones place
• Apply multiplying by 10 to real-world contexts with groups and quantities
• Begin noticing patterns when multiplying single digits by 10

Common mistakes to watch for

First graders often confuse multiplying by 10 with adding 10. A student might solve 3 × 10 and write 13 (adding 10) instead of 30. Another common error is writing the zero in the wrong place or adding multiple zeros randomly. Teachers and parents can spot this by asking the child to show their thinking with pictures or objects—if they're drawing 10 groups of 3 items, they'll physically see 30, which reveals whether they understand the concept or just memorized a rule. Listen for language too: a student saying "three tens" is on the right track, while "three plus ten" indicates confusion.