KS2 Primary Maths Age 13-17 - Ratio, Proportion and Algebra: Finding Missing Numbers - Explained

The video tutorial guides students through completing a table by adding or subtracting 1000 from given numbers. It starts with an example row to explain the process, then demonstrates solving the table using both written and mental calculations. The tutorial concludes with a discussion on marks awarded for correct answers.

What is the result when you add 1000 to 3500?

• 4500

• 4000

• 2500

• 5500

If you add 1000 to 85, what is the resulting number?

• 1085

• 1185

• 2085

• 985

What is the number you get when you subtract 1000 from 9099?

• 9090

• 9999

• 8099

• 8000

How would you calculate 15,250 minus 1000 mentally?

• 15,350

• 14,150

• 15,150

• 14,250

How many marks are awarded for getting all three numbers correct in the table?

• 3 marks

• 4 marks

• 2 marks

• 1 mark