Subtraction

Objectives

To recall the process of regrouping where necessary when carrying out subtraction calculations.

To work with larger numbers using the column method for subtraction, and to compare the Frog method to understand the connection between methods for subtraction.

Resources

Abacus 4 Textbook 3 | Chalk | Squared paper | Written Subtraction video | Follow The Directon (TopMarks)

Today's Lesson

Main Activity

For the mental warm ups each day, ask your student to face North again.

Then give more direction instructions, but this time also involve the directions North East, North West, South East and South West. If you have access to an outside/paved area, it might be helpful to draw a compass with chalk on the ground for your child to refer to if they need reminding of the new directions.

Turn to page 64 in Abacus 4 Textbook 3.

Talk about the difference between the 3 and 4 digit numbers with your child, but stress the importance of place value being more important than the number of digits.

For example Q2 would be set out like this:


	Thousands	Hundreds	Tens	Ones
	5	5	2	4
-		9	5	7

Ask your student to copy and complete the subtraction calculations on the page. Remind them to include a word sentence with the answer to the problems.

Citations

[1] www.mathsisfun.com