Double the Four Strategy Worksheets for Multiplying by 8 (Grade 3)

Question

Hey there! 👋 Learning to multiply by 8 can seem tricky, but I've got a cool trick for you! We're going to use something called the 'Double the Four' strategy. It's like a little shortcut that makes multiplying by 8 super easy. Trust me, you'll be a multiplication whiz in no time! Let's get started! 😄

carl_craig · Accepted Answer

🔢 Topic Summary
The 'Double the Four' strategy is a simple method to multiply any number by 8. Instead of directly multiplying by 8, you multiply the number by 4 and then double the result. This works because 8 is the same as 4 x 2! It's like breaking down a big problem into smaller, easier steps. This strategy is perfect for mental math and helps build a stronger understanding of multiplication.

🧮 Part A: Vocabulary

Term
    Definition

1. Product
    a. A method of solving problems

2. Strategy
    b. To increase a number

3. Double
    c. The answer to a multiplication problem

4. Multiply
    d. Two times as much

5. Factor
    e. Numbers you can multiply together to get another number

Match the term to the correct definition.

➕ Part B: Fill in the Blanks
To use the Double the Four strategy, first _________ by four. Then, _________ your answer. For example, to solve $3 	imes 8$, first do $3 	imes 4$ which is _________. Then double _________ to get _________. So, $3 	imes 8 = $ _________.

🤔 Part C: Critical Thinking
Explain in your own words why the 'Double the Four' strategy works for multiplying by 8. Can you think of another multiplication trick?

Double the Four Strategy Worksheets for Multiplying by 8 (Grade 3)

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1 Answers

🔢 Topic Summary

🧮 Part A: Vocabulary

➕ Part B: Fill in the Blanks

🤔 Part C: Critical Thinking

Join the discussion

Term	Definition
1. Product	a. A method of solving problems
2. Strategy	b. To increase a number
3. Double	c. The answer to a multiplication problem
4. Multiply	d. Two times as much
5. Factor	e. Numbers you can multiply together to get another number