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MA19.5.1
Write, explain, and evaluate simple numerical expressions involving the four operations to solve up to two-step problems. Include expressions involving parentheses, brackets, or braces, using commutative, associative, and distributive properties.

Write, explain, and evaluate simple numerical expressions involving the four operations to solve up to two-step problems. Include expressions involving parentheses, brackets, or braces, using commutative, associative, and distributive properties.

### Unpacked Content

## UP:MA19.5.1

### Vocabulary

- Expression
- Calculate
- Interpret
- Evaluate
- Compare
- Reasoning
- Grouping symbol
- Parentheses
- Braces
- Brackets
- Commutative property
- Associative property
- Distributive property

### Knowledge

- Vocabulary associated with the four operations to write the symbolic notation of the mathematical expression.

Example: The phrase, "the product of 4 and 3" is written as "4 x 3." - Strategies for evaluating a numerical expression and replace it with an equivalent form.

Example: Given (22 + 16) + 43 can be replaced with 38 + 43 and then further simplified.

### Skills

- Write, explain, and evaluate numerical expressions representing two-step problems in context.
- Evaluate numerical expressions with grouping symbols.
- Translate a numerical expression into words.
- Write a numerical expression given a mathematical expression in words.

### Understanding

- multi-step word problems can be represented by numerical expressions using operations and grouping symbols to indicate order of evaluating them.