What this lesson covers
Subtraction to 20 is a 6-part Class 1 Mathematics lesson. Each part makes one point and then hands over to the next, so it can be read in a sitting or picked up again at the part you stopped on. It defines the idea in plain words before using it, works through an example step by step, breaks the topic into its parts and compares them, ends with a recap of what to remember.
How it begins
When we take away, we start with some things and some go. We are left with fewer than we started with.
The 6 parts
- Taking away
- The take-away sign
- Count back to find the answer
- Take away all, take away none
- You can subtract!
- Watch one worked through
Practise Subtraction to 20
Everything on QuizByt for Class 1 Mathematics that goes with this lesson: read it first, then test yourself while it is fresh.
🧠 3 quizzes on Subtraction to 20 (3 easy)
Start easy straight after reading, while Subtraction to 20 is fresh, and the score is kept against this topic.
🖨️ Printable worksheet
Subtraction to 20 on paper for Class 1, with room to write the working out. Preview the first page free.
🎮 Games for Class 1 Mathematics
Number and logic games at the right level for Class 1. Passing a quiz on Subtraction to 20 earns the credits that open them.
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