Subtracting Whole Numbers: Key Concepts and Techniques

What is the main purpose of the website mentioned in the video?

• To provide cooking lessons

• To offer language learning courses

• To sell math textbooks

• To offer complete math lessons with various resources

When lining up the numbers 985 and 57 for subtraction, what should you ensure?

• The units digits are in the same column

• The numbers are written in descending order

• The tens digits are in the same column

• The hundreds digits are in the same column

Why do we need to borrow when subtracting 7 from 5 in the units column?

• Because 7 is equal to 5

• Because 5 is greater than 7

• Because 7 is greater than 5

• Because 5 is a prime number

After borrowing, what is the new value in the units column before subtraction?

• 17

• 12

• 15

• 10

What is the final result of subtracting 57 from 985?

• 928

• 938

• 958

• 948