Grade 4: Double Digit Multiplication (How to)
Homeschool Flashcards・5 minutes read
To solve 25 times 10, start by multiplying 0 times 5 and 0 times 2, then proceed to multiply 1 times 5 and 1 times 2 to get 250. For 25 times 55, multiply 5 times 5 to get 25, carry over the 2, and carefully place the digits in the correct columns while double-checking the multiplication manually.
Insights
- Using graph paper and a sharp pencil is recommended for solving multiplication problems like 25 times 10 to enhance accuracy and clarity.
- Double-checking calculations by reversing factors is crucial to ensure precision in manual multiplication, emphasizing the importance of meticulous verification in the absence of calculators.
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Recent questions
How do you multiply 25 by 10?
Use a sharp pencil and graph paper.
What is the process to multiply 25 by 55?
Multiply digit by digit, carry over when needed.
How can you ensure accuracy in multiplication?
Verify manually and use graph paper.
What tools can aid in multiplication calculations?
Sharp pencil and graph paper.
Why is it important to double-check multiplication?
To ensure precision and accuracy in results.
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Summary
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Multiplication Tips: 25 x 10 and 25 x 55
- To solve the problem of 25 times 10, use a sharp pencil and graph paper for better results.
- Begin by multiplying 0 times 5 and 0 times 2, both resulting in 0.
- Proceed to multiply 1 times 5 and 1 times 2, then add the results to get 250.
- Double-check your work by flipping the factors, ensuring accuracy in calculations.
- For 25 times 55, multiply 5 times 5 to get 25, carry over the 2, then proceed with the calculations.
- Continue by multiplying 5 times 2, adding the results, and carefully placing the digits in the correct columns.
- Double-check the multiplication by reversing the factors and repeating the process meticulously.
- Always verify your work manually, especially in situations where calculators might not be available.
