teaching resource

The Subtraction Algorithm – Teaching Presentation

• Updated:  28 May 2023

Use this animated PowerPoint with your students when learning how to use the subtraction algorithm and borrowing.

• Pages:  1 Page

• Years:  3 - 4

Curriculum

• ACMNA053

Apply place value to partition, rearrange and regroup numbers to at least 10 000 to assist calculations and solve problems

• ACMNA073

Apply place value to partition, rearrange and regroup numbers to at least tens of thousands to assist calculations and solve problems

teaching resource

The Subtraction Algorithm – Teaching Presentation

• Updated:  28 May 2023

Use this animated PowerPoint with your students when learning how to use the subtraction algorithm and borrowing.

• Pages:  1 Page

• Years:  3 - 4

Use this animated PowerPoint with your students when learning how to use the subtraction algorithm and borrowing.

Subtraction with Regrouping – Lesson Plans Sorted!

Teaching vertical subtraction with regrouping (a.k.a. borrowing) can be a challenge. This teaching presentation aims to simplify the process by using a conversational tone. You can narrate each step by reading the text and the on-screen visuals will match.

The presentation begins with an explanation of borrowing using concrete materials, i.e., MABs, to help visualise quite an abstract concept. Extend this portion of the presentation by having students replicate this using physical MABs and then using numbers of their own choosing.

Nothing to Borrow? Subtracting Across Zeroes

The teaching presentation also has a section describing what to do when a neighbouring column has nothing to borrow. You could complete this section at the same time as the first or separate these parts over two lessons to ensure your students grasp the concept of traditional borrowing before moving on to ‘double borrowing.’

Subtraction Slideshow

This presentation uses the animation features of Google Slides and  PowerPoint. This may result in some slides appearing to have elements that overlap when viewed in edit mode. View the presentation in ‘Slide Show’ mode for best results and animations.

Use the dropdown arrow to select the PowerPoint or Google Slides resource file.

Take a look at our Addition Algorithm Teaching Presentation below:

teaching resource

The Addition Algorithm – Teaching Presentation

Use this editable interactive teaching presentation with your students when explaining how to use the addition algorithm with regrouping.

23 pagesYears: 3 - 6