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Scientific notation
Write very large and very small numbers in scientific notation and convert them back to ordinary decimal form.
⏱ 18 min❓ 11 questions
What you'll be able to do
- ✔I can write large and small numbers in the form a × 10ⁿ with 1 ≤ a < 10
- ✔I can convert numbers in scientific notation back to decimal form
- ✔I can compare and order numbers written in scientific notation
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
11 questions and 1 quick teaching card, including:
- 🔘Multiple choice — Tap the answer you think is best, then check it.
- ✏️Fill in the blank — Type the missing word to complete the sentence.
👪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: AC9M9A01, AC9M9M02