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Adding & Subtracting to 20
Add and take away numbers up to 20 using counting on and counting back.
⏱ 15 min❓ 13 questions
What you'll be able to do
- ✔I can add two numbers with a total up to 20
- ✔I can take away to subtract numbers up to 20
- ✔I can use counting on to add quickly
How this works
- 1Read the short explanations first — they teach you what you need before each question.
- 2Answer each question, then tap Check. A right answer moves you on automatically; if it's wrong, you'll see a friendly explanation of why.
- 3Finish all 3 steps to see your score — sign in and subscribe to unlock the full lesson and save it.
What's inside
13 questions and 1 quick teaching card, including:
- 🔢Number answer — Work out the answer and type the number.
👪Grown-up tip: sit alongside younger learners for the first few lessons. Read the questions together and chat about the explanations — that's where the real learning sticks.
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Curriculum: AC9M1N03, AC9M1N04