Missing Numbers in Addition: Solving for the Unknown

The video tutorial explains how to find a missing number in an addition problem. It emphasizes the importance of understanding place value, particularly in the hundreds of thousands, tens, and ones columns. By analyzing the given numbers and their positions, the tutorial guides viewers to identify the missing number as 30,000, which completes the equation 400,000 + 30,000 + 70 = 430,070.

What operation is being used to solve the problem in the video?

• Addition

• Division

• Multiplication

• Subtraction

What is the place value of the number 400,000 in the equation?

• Units

• Thousands

• Tens

• Hundreds of thousands

Which column does the number 70 belong to in the place value system?

• Millions

• Thousands

• Hundreds

• Tens and ones

What is the missing number that completes the equation 400,000 + ? + 70 = 430,070?

• 300,000

• 3,000

• 3,000,000

• 30,000

How many marks is the correct identification of the missing number worth?

• 5 marks

• 2 marks

• 1 mark

• 3 marks