Mathematics
Addition & Subtraction
Procedural
10–11 yrs
Adding and subtracting (age 10+)
加法与减法（10岁以上）
Description
Solve addition and subtraction multi-step problems in contexts, deciding which operations and methods to use and why, with numbers up to 10,000,000 and decimals
Mastery Evidence
- Solve a two-step word problem involving addition and subtraction of numbers beyond 1,000,000
- Choose between mental, written, and calculator methods for a multi-step problem and justify the choice
- Interpret a real-life context to identify which addition/subtraction operations are needed across multiple steps
Assessment Prompt
If your child is given a complicated word problem involving large numbers or decimals — like calculating the total cost of several items — can they plan and carry out all the steps correctly?
Prerequisites 3
Adding and subtracting (age 9+)
千万以内的多步加减法是对五年级多步加减法问题的延伸
Reading and writing numbers to 10,000,000
千万以内的计算问题需要能够读写和比较千万以内的数
Addition and subtraction strategies (age 10+)
多步骤问题可能涉及小数加减法
Unlocks 0
No follow-up topics
