Solving word problems
Word problems tell a story with numbers. Use 4 steps: Understand what is asked, Plan which operation to use, Solve it, then Check. Words like "in total" mean add, "left" or "how many more" mean subtract, "each group" often means multiply or divide.
Key idea / 要点
Read carefully → pick + − × or ÷ → work it out → check that the answer makes sense.
A worked story
Worked example / 例题
A shop has 1 250 books. It sells 480 on Monday and 365 on Tuesday. How many books are left?
Plan: sold in total, then subtract.
Sold = 480 + 365 = 845.
Left = 1 250 − 845 = 405 books.
Check: 405 + 845 = 1 250. Correct!
Sharing equally
If 6 friends share 96 stickers equally, each gets 96 ÷ 6 = 16 stickers.
Remember / 记住
- Underline the important numbers and the question.
- Choose the right operation from the clue words.
- Always check if your answer is sensible.