Montana Math MT.6.EE.2
The Standard
Write, read, and evaluate expressions with variables by: Writing expressions that record operations with numbers and with variables, Identifying parts of an expression using mathematical terms (sum, product, difference, quotient, term, factor, coefficient, variable) and writing expressions that represent verbal descriptions of problems in context, and Evaluating expressions at specific values of their variables including expressions that arise from formulas performing arithmetic operations, including those involving whole-number exponents and using the order of operations.
2026 Montana Mathematics Content Standards
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students write expressions for word problems using numbers and variables. They name sums, differences, products, quotients, terms, factors, coefficients, and variables. They substitute values into expressions and formulas, then calculate using the order of operations, including exponents.
What Mastery Looks Like
- Given 'three more than twice n,' a student writes 2n+3 and identifies 2 as the coefficient. They name 2n and 3 as the terms and get 11 when n=4. They also evaluate 2n²+3 when n=4 and get 35.
Common Misconceptions
- Students may write 5-2x for 'five less than twice x,' reversing the order. Some treat 3x as 3+x or call 3 the variable. When x=4, some calculate 2x² as (2×4)² instead of 2×4².
How to Assess It
- Exit ticket: Write an expression for 'five less than twice x,' then label its terms and coefficient. Evaluate 2x²-5 when x=4, showing your steps.
Lesson moves
Ways to Teach It
Set out three covered cups holding x counters each and five loose counters, then write 3x+5 and label its terms.
Write expressions for 'five less than twice a number' and 'twice the difference of a number and five,' then explain how they differ.
Match cards showing 2(x+3), 'twice the sum of x and three,' and 14 when x=4.
Post a taxi fare of $4 plus $2 per mile, and have students write C=4+2m and find the fare for 6 miles.
Free download
Printable MT.6.EE.2 Worksheet
A ready-to-print activity worksheet aligned to MT.6.EE.2, with an answer key for the teacher on its own page. No account needed.
PDF, US Letter, prints cleanly in black and white.
Download the worksheetKeep exploring
Related Standards
- MT.6.EE.1
Write and evaluate numerical expressions involving whole-number bases and exponents.
- MT.6.EE.5
Write expressions when solving problems in context and understand that a variable can represent an unknown number, or any number in a specified set.
- MT.7.EE.3
Write and solve one- and two-step equations including problems in context with rational numbers, convert between forms as appropriate, and assess the reasonable...
Turn this exact standard into a lesson
Grade, subject, topic, and the complete standard are prefilled. Create one free, no account needed.
Also for this standard:Make a WorksheetMake a QuizMake a Sub Lesson