Mathematics
Multiplication & Division
Procedural
10–11 yrs
Brackets in Expressions
表达式中的括号
Description
Use parentheses, brackets, or braces in numerical expressions and evaluate expressions containing these grouping symbols
Mastery Evidence
- Evaluate 3 × (4 + 5) by computing inside the parentheses first
- Evaluate {2 × [3 + (7 − 1)]} with nested grouping symbols
- Insert parentheses into an expression to make it equal a target value
Assessment Prompt
Can your child look at '3 × (4 + 5)' and work out the brackets first — getting '3 × 9 = 27' — rather than just multiplying left to right?
