Mathematics
Algebra
Procedural
10–11 yrs
Equations with Two Unknowns
含两个未知数的方程
Description
Find pairs of numbers that satisfy an equation with two unknowns (e.g. find pairs (a, b) where a + b = 10 or 2a + b = 15)
Mastery Evidence
- List all whole-number pairs (a, b) where a + b = 12 with a, b > 0
- Find three pairs that satisfy 2x + y = 20
- Explain systematically how to generate all integer solutions to a two-variable equation within a given range
Assessment Prompt
Can your child find different pairs of numbers that both satisfy a rule — for example, all the pairs of whole numbers that add up to 10?
Prerequisites 1
Writing Algebraic Equations
找出满足方程的数对，需要具备代数表达式技能
Unlocks 1
Simultaneous Equations
