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Multiplying Two Digits by One Digit

Grade 4 · Math · Multi-Digit Multiplication · Prince Edward Island, Canada

Lesson Summary

Multiply a two-digit number by a one-digit number using place value. Break the bigger number into tens and ones to make it easier.

Explanation

To multiply a number like 34 × 5, you can break 34 into 30 and 4. First multiply 30 × 5 to get 150, then multiply 4 × 5 to get 20. Add those two results together: 150 + 20 = 170. This is called the partial-products method. You can also line the numbers up vertically and multiply each digit one at a time, starting from the ones place.

Practice Questions

Q1: What is 23 × 4?
Answer: 92
Q2: What is 51 × 7?
Answer: 357
Q3: What is 46 × 3?
Answer: 138
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People Also Ask

What is Multiplying Two Digits by One Digit in Grade 4 Math?+

Multiplying Two Digits by One Digit is a lesson in the Multi-Digit Multiplication chapter of Grade 4 Math. It is part of the Prince Edward Island, Canada school curriculum and covers key concepts that students need to understand at this level.

What grade level covers Multiplying Two Digits by One Digit?+

Multiplying Two Digits by One Digit is taught in Grade 4 as part of the Math curriculum in Prince Edward Island, Canada.

How can I help my child with Multi-Digit Multiplication in Math?+

Start with the lesson summary and explanation on this page. Practice the questions provided, then use TutorTom for personalized, step-by-step help with Multi-Digit Multiplication topics.

More Lessons in Multi-Digit Multiplication

Multiplying by 10, 100, and 1,000→ Multiplying Two Digits by One DigitMultiplying with RegroupingMultiplying Two Digits by Two DigitsEstimation in Multiplication

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