Subtracting Integers with Two Color Counters

This video tutorial explains how to subtract integers using two color counters. It defines yellow counters as positive and red counters as negative, demonstrating how to represent integers and perform subtraction by adding zeros. Two examples are provided: subtracting five minus eight and negative seven minus five, showing different approaches to achieve the same result.

What does a yellow counter represent in the two color counter method?

• Positive two

• Negative one

• Zero

• Positive one

What does combining a yellow and a red counter result in?

• Positive one

• Negative one

• Zero

• Positive two

How can you represent positive two using two color counters?

• Two yellow counters

• Two red counters

• One yellow and one red counter

• Three yellow counters

In the example of 5 minus 8, how many zeros need to be added to perform the subtraction?

• Two

• Three

• Four

• Five

What is the result of 5 minus 8 using two color counters?

• Positive three

• Negative three

• Negative five

• Zero

What is the purpose of adding a 'sea of zeros' in the subtraction process?

• To make the process faster

• To simplify the subtraction

• To increase the number of counters

• To change the result

In the alternative approach to 5 minus 8, what remains after removing eight yellow counters?

• Two yellow and three red counters

• Five yellow counters

• Five red counters

• Three yellow and two red counters

In the second example, what is the initial representation of negative seven?

• Five yellow and two red counters

• Five red and two yellow counters

• Seven yellow counters

• Seven red counters

How many yellow counters need to be removed in the example of negative seven minus five?

• Three

• Four

• Five

• Six

What is the final result of negative seven minus five using two color counters?

• Negative five

• Negative ten

• Zero

• Negative twelve