Subtraction

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/subtraction

Step 2 · Questions

1. 1. What does the minus sign (-) mean in subtraction?

2. 2. Why do we use subtraction in math and science?

Step 3 · Words to know

Write what each word means, using the article.

• Additive Inverse

• Two's Complement

• Catastrophic Cancellation

Step 4 · Two facts in your own words

Do not copy the article. Write two things you learned, the way you would explain them to a friend.