Multiplying Multi-digit Numbers by Single Digits

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6 Questions

Multiplying a multi-digit number by a single digit involves multiplying each digit of the multi-digit number by the single digit and then adding the ______.

products

To multiply a multi-digit number by a single digit, start by writing the ______ numbers side by side.

multi-digit

When multiplying each digit of the multi-digit number, make sure to ______ up the products of each digit in the correct columns.

line

The final answer is obtained by ______ the products of each digit.

adding

To avoid errors, make sure to ______ up the digits correctly and add the products carefully.

line

Breaking down the multiplication into smaller parts and ______ the products can be helpful for larger multi-digit numbers.

adding

Study Notes

Multiplying Multi-digit Numbers by Single Digits

The Basics

  • Multiplying a multi-digit number by a single digit involves multiplying each digit of the multi-digit number by the single digit and then adding the products.
  • The process is similar to multiplying single-digit numbers, but with an extra step of adding the products.

Steps to Multiply a Multi-digit Number by a Single Digit

  1. Write the numbers: Write the multi-digit number and the single digit number side by side.
  2. Multiply each digit: Multiply each digit of the multi-digit number by the single digit number.
  3. Line up the products: Line up the products of each digit, making sure to place the digits in the correct columns.
  4. Add the products: Add the products of each digit to get the final answer.

Example: Multiplying a 2-digit number by a single digit

  • Multiply 24 by 3:
    • Multiply 20 by 3: 60
    • Multiply 4 by 3: 12
    • Add the products: 60 + 12 = 72
    • Final answer: 72

Tips and Tricks

  • To avoid errors, make sure to line up the digits correctly and add the products carefully.
  • Use the multiplication chart or times tables to help with multiplying single-digit numbers.
  • For larger multi-digit numbers, break down the multiplication into smaller parts and add the products.

Multiplying Multi-digit Numbers by Single Digits

The Basics

  • Multiplying a multi-digit number by a single digit involves multiplying each digit of the multi-digit number by the single digit and then adding the products.

Steps to Multiply

  • Write the multi-digit number and the single digit number side by side.
  • Multiply each digit of the multi-digit number by the single digit number.
  • Line up the products of each digit, making sure to place the digits in the correct columns.
  • Add the products of each digit to get the final answer.

Example

  • Multiply 24 by 3: 20 × 3 = 60, 4 × 3 = 12, and 60 + 12 = 72.

Tips and Tricks

  • Ensure correct alignment of digits and careful addition of products to avoid errors.
  • Use the multiplication chart or times tables to help with multiplying single-digit numbers.
  • For larger multi-digit numbers, break down the multiplication into smaller parts and add the products.

Learn the basics of multiplying multi-digit numbers by single digits, including the step-by-step process and examples. This quiz covers the fundamental concepts of multiplication.

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