Practice: Variables & Expressions
Translate English to algebra, evaluate by substitution, and name the parts — terms, coefficients, constants.
1 Practice
Untimed practice with hints and full worked solutions. Every problem is generated fresh.
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How to enter answers
- For translations, type the expression plainly:
x-5,2n+3,6m. - Spaces do not matter. Use
*for times if you like:2*x. - For evaluation questions, enter the number:
14,-17.
2 Problem types
The generator mixes these types at random.
Translate words to algebra
English → expression. Watch “less than”.
“5 less than x” → x−5
Translate trickier phrases
“More/less than twice” combos.
“3 more than twice n” → 2n+3
Evaluate ax + b
Substitute, then multiply first.
2 + 3x at x=4 → 14
Evaluate with the trap
a + bx: the trap is adding first.
2 + 3x at x=4 → 14, not 20
Evaluate a quadratic
Exponents before ×/÷ before +/−.
x² − 2x + 5 at x=3 → 8
Coefficients and constants
Name the parts of an expression.
7x³ + 2x − 9