Unit 6 · Standard 6.AT.7
🔑 Identify Equivalent Algebraic Expressions — Vocab Explorer
① Word Wall
Look at the picture, read the meaning, and tap 🔊 to hear each word.
ES Expresiones equivalentes
Expressions that look different but have the same value for every allowed variable value.
Expresiones que se ven diferentes pero tienen el mismo valor para cada valor permitido de la variable.
ES Equivalente
Expressions that always have the same value.
Expresiones que siempre tienen el mismo valor.
ES Simplificar
To rewrite an expression in a shorter form that is still equal to the original.
Reescribir una expresión en una forma más corta que sigue siendo igual a la original.
ES Términos semejantes
Terms with the same letter raised to the same power, like 2x and 5x.
Términos con la misma letra elevada a la misma potencia, como 2x y 5x.
ES Combinar
To add or subtract terms with the same letter into one.
Sumar o restar términos con la misma letra en uno solo.
ES Coeficiente
The number in front of a letter, like the 3 in 3x.
El número frente a una letra, como el 3 en 3x.
ES Propiedad conmutativa
The order of the numbers can change in addition or multiplication without changing the result.
El orden de los números puede cambiar en una suma o una multiplicación sin cambiar el resultado.
ES Propiedad asociativa
The grouping of the numbers can change in addition or multiplication without changing the result.
La agrupación de los números puede cambiar en una suma o una multiplicación sin cambiar el resultado.
ES Contraejemplo
One test value that shows two expressions are not equivalent.
Un valor de prueba que muestra que dos expresiones no son equivalentes.
② Match it
Tap a word, then tap its meaning.
③ Fill in the blank
Use the word bank to finish each sentence.
- 1Expressions with the same value for allowed number are equivalent.
- 2Expressions that always have the same value are .
- 3Rewriting an expression in a shorter form that is still equal to it is to it.
- 4Terms with the same variable raised to the same power, like 4x and 9x, are .
- 5To add or subtract like terms into one term is to them.
- 6A number multiplied by a variable is a .
- 7The rule that a + b = b + a is the .
- 8The rule that (a + b) + c = a + (b + c) is the .
- 9One value that shows two expressions are not equal is a .
④ Use it in a sentence
Pick one word and finish the sentence in your own words.
A is .