Exploring Robert Recorde's Multiplication Method

What is the historical significance of Robert Recorde's arithmetic textbook?

• It was the first book to introduce calculus.

• It was one of the first English language textbooks on arithmetic.

• It was the first book to discuss geometry.

• It was the first book to use negative numbers.

What unique feature did Robert Recorde introduce in his textbook?

• The equals sign

• The division symbol

• The multiplication table

• The concept of zero

In Recorde's method, what is the first step when multiplying two numbers like 8 and 7?

• Draw a straight diagonal line from each number

• Subtract the smaller number from the larger

• Add the numbers together

• Multiply the numbers directly

Why does Recorde's method suggest not using it for small numbers like 3 * 4?

• Small numbers can be easily multiplied without the method

• The method is only for even numbers

• The method results in negative numbers

• Small numbers are too complex for the method

What is the main reason Recorde's method was considered useful for numbers like 8 * 7?

• It was the only method available at the time

• It simplifies the multiplication process

• It was faster than modern methods

• It was a fun and engaging way to learn multiplication

How does the algebraic justification show that Recorde's method works for any two numbers?

• By showing it results in negative numbers

• By demonstrating the method through distribution and simplification

• By using it to solve complex equations

• By proving it only works for single-digit numbers

What issue arises when using Recorde's method for 6 * 7?

• The product is too large

• The method cannot be applied to even numbers

• The method results in a negative number

• The multiplication of the differences results in a two-digit number

When applying Recorde's method to 24 * 17, what is the first step?

• Find how much of 10 is missing from each number

• Directly multiply the numbers

• Add the numbers together

• Subtract the smaller number from the larger

What is the final step in Recorde's method when multiplying 24 by 17?

• Multiply the numbers directly

• Add the products of the differences to the tens place value

• Divide the product by 10

• Subtract the smaller number from the larger

How does the modern approach to multiplying 24 by 17 differ from Recorde's method?

• It involves adding the numbers together

• It uses a calculator for faster results

• It uses a multiplication table

• It breaks down the numbers into factors and uses doubling