Ages 9–10🧮 Mathematics9 verified questions on this shelf
Mental addition and subtraction (age 9+)
Add and subtract numbers mentally with increasingly large numbers, using place-value knowledge and derived facts
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Question 1 of 3
If you start at 3,200 and count up until you reach 10,000, how much must you add to 3,200?
Question 2 of 3
Using the near‑double strategy, what is 6,700 + 6,800?
Question 3 of 3
What is 4,700 + 4,800?
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A free account keeps practising Mental addition and subtraction (age 9+) with 9 verified questions, tracks the Skill as it blooms, and connects a real teacher when you want one. Every student account needs a parent's email first.