Subtraction — Regrouping, Trading & Beyond
The free lesson covers every subtraction fact to 18. This course covers what comes next: multi-digit subtraction with regrouping (“trading”), subtraction across zeros, and the exact column-by-column method Australian classrooms use — including the single most common subtraction mistake, and how it's prevented before it becomes a habit.
New here? Start with the free Subtraction — Number Bonds lesson first — this course picks up right where it leaves off.
What’s covered
- ✓12 short video lessons, building step by step from double-digit subtraction through triple-digit subtraction with trading and zeros
- ✓The “if the top digit is smaller, trade” method — the exact language used in Australian classrooms, so nothing has to be unlearned later
- ✓Direct prevention of the smaller-from-larger column bug, the single most common subtraction mistake
- ✓Subtraction across zeros (for example 500 − 123), taught as its own dedicated stage rather than a passing mention
Video course
$49 AUD, one-off
All 12 video lessons.
- ✓12 video lessons
- ✓Lifetime access
- ✓Watch on any device
Video + worksheets
$89 AUD, one-off
Everything in the video course, plus a printable worksheet pack for every stage.
- ✓Everything in the video course
- ✓A printable worksheet pack for every one of the 12 stages, with its own answer key
- ✓Missing-number practice pages, so a child can check their own understanding without the video running
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