Max Rescues the Farm: Multiply by 10 and 100!

About this Grade 1 Multiplying By 10 100 Drill

Multiplying by 10 is one of the first big multiplication patterns Grade 1 students encounter, and it's foundational for number sense and mental math. When a child learns that 3 × 10 = 30, they're discovering how place value works—how ones become tens. This skill builds confidence with larger numbers and prepares them for multiplication facts they'll master in later grades. At age 6 or 7, children are developing the ability to see patterns and repeat them, which is exactly what multiplying by 10 asks them to do. In real life, this shows up when counting coins, organizing items into groups of ten, or understanding how a farmer might count 10 eggs per basket. Practicing this pattern also strengthens their ability to think about "groups of," a concept central to all multiplication.

What your student will practice

• Recognize and apply the pattern that any number times 10 becomes that number with a zero added
• Count by tens fluently and connect it to multiplication sentences
• Represent multiplication by 10 with visual models like arrays or groups
• Solve one-step word problems involving groups of 10

Common mistakes to watch for

The most common error at this stage is students writing the correct number but then adding an extra zero without understanding why—for example, saying 5 × 10 = 500 instead of 50. Another frequent mistake is confusing 10 × a number with 10 + a number, especially when the child isn't yet secure with the "groups of" language. You'll spot these errors by asking the child to show the problem with objects or draw it out; a child who truly understands will count or group correctly, while one who's just memorizing a rule may hesitate or count incorrectly when you ask them to prove it.