Max Rescues the Zoo: Multiply by 10 and 100!

About this Grade 2 Multiplying By 10 100 Drill

Multiplying by 10 and 100 is a foundational skill that helps second graders recognize patterns in our number system and builds confidence with larger numbers. When children understand that 3 × 10 = 30, they're learning how place value works—a concept that will support all future multiplication, division, and even money skills. At ages 7-8, students' brains are developing the ability to see abstract patterns, and multiplying by 10 or 100 gives them a concrete way to practice this thinking. This skill also appears in everyday situations: calculating the cost of 10 toy animals at a store, finding the total buttons on 10 shirts, or understanding how coins combine into dollars. Mastering these quick multiplications reduces math anxiety and gives students a genuine sense of mathematical power that carries into third grade and beyond.

What your student will practice

• Multiply single-digit numbers by 10 with fluency and accuracy
• Multiply single-digit numbers by 100 and recognize the pattern
• Apply the pattern of adding zeros to solve multiplication problems
• Explain why multiplying by 10 or 100 shifts digits left in place value

Common mistakes to watch for

The most common error is that students add a zero without truly understanding place value—they might write 7 × 10 = 70 correctly but then think 7 × 100 = 700 by simply 'adding a zero' without grasping what that zero represents. Watch for students who confuse the operation: they may add 10 to a number instead of multiplying by 10, writing 7 + 10 = 17 when asked for 7 × 10. Some children also reverse digits or miscount zeros when working with 100, writing 7 × 100 = 7000 instead of 700. Ask your child to explain *why* the answer has zeros to catch whether they understand the concept or are just following a memorized rule.