I can use the commutative, associative, and identity properties to rewrite expressions.Puedo usar las propiedades conmutativa, asociativa y de identidad para reescribir expresiones.
MissionMisión · Corner KitchenCocina de la esquina
Cook up the right answer.Cocina la respuesta correcta.
The Corner Kitchen writes its recipes and prices in many ways. Your job is to rewrite each expression so it is easier to work with but keeps exactly the same value, like regrouping ingredients without changing the dish.
La Cocina de la Esquina escribe sus recetas y precios de muchas maneras. Tu trabajo es reescribir cada expresión para que sea más fácil de usar pero conserve exactamente el mismo valor, como reagrupar ingredientes sin cambiar el plato.
Word bankBanco de palabras 5 words5 palabrascommutative property, associative property, identity property, …propiedad conmutativa, propiedad asociativa, propiedad de identidad, …
- commutative propertypropiedad conmutativa
- You can change the order of numbers when adding or multiplying and get the same answer.Puedes cambiar el orden de los números al sumar o multiplicar y obtener la misma respuesta.
- associative propertypropiedad asociativa
- You can change the grouping of numbers when adding or multiplying and get the same answer.Puedes cambiar la agrupación de los números al sumar o multiplicar y obtener la misma respuesta.
- identity propertypropiedad de identidad
- Adding 0 or multiplying by 1 keeps the same value.Sumar 0 o multiplicar por 1 mantiene el mismo valor.
- equivalent expressionsexpresiones equivalentes
- Expressions that have the same value for every value of the variable.Expresiones que tienen el mismo valor para todo valor de la variable.
- propertypropiedad
- A rule that is always true for the numbers it covers.Una regla que siempre es verdadera para los números que cubre.
Stage 1 of 5Etapa 1 de 5
Get ReadyPrepárate
Wake up what you know, then explore today's model.
Activa lo que sabes y luego explora el modelo de hoy.
- Set the model to 2, 17 and 5. Rewrite the product 2 × 17 × 5 in two ways: one that changes only the ORDER and one that changes only the GROUPING. Predict whether the value changes, test each way in the model, and name the property you used each time.
- Evaluate 3n + 4 when n = 5.
- 19
- 35
- 12
- 15
- Which two terms are like terms?
- 4n and 7
- 4n and 7n
- 4n and 4m
- 7 and n
- Evaluate 2n + 3n when n = 4.
- 1 fresh problem with new numbers each time (interactive only).
Stage 2 of 5Etapa 2 de 5
Try ItInténtalo
Use the hints when you need them. Every wrong answer tells you why.
Usa las pistas cuando las necesites. Cada respuesta incorrecta te dice por qué.
- Which property is shown? 5 + 13 = 13 + 5
- Commutative Property
- Associative Property
- Identity Property
- Distributive Property
- Which property is shown? (6 × 3) × 2 = 6 × (3 × 2)
- Commutative Property
- Identity Property
- Associative Property
- Distributive Property
- Which property is shown? 47 + 0 = 47
- Commutative Property
- Associative Property
- Distributive Property
- Identity Property
Stage 3 of 5Etapa 3 de 5
On Your OwnPor tu cuenta
Tables, mistakes to find, and problems with a few steps.
Tablas, errores por encontrar y problemas de varios pasos.
- Match each equation to its property.
- Fill in the table
- Spot the Common Mistake
- What is the best next move?
- Add the numbers: 3 + 4 = 7, so write 7n.
- Say the order cannot change, so it is already as short as it gets.
- Write the numbers side by side: 34n.
- Reorder the factors to 3 × 4 × n, then multiply 3 × 4.
Stage 4 of 5Etapa 4 de 5 · OptionalOpcional
Practice MorePractica más
Optional extra practice. Press New numbers for another problem on the same skill.
Práctica extra opcional. Toca Números nuevos para otro problema de la misma habilidad.
- 5 fresh problems with new numbers each time (interactive only).
Stage 5 of 5Etapa 5 de 5
Show What You KnowDemuestra lo que sabes
Show what you learned today. Take your time; you can try again.
Muestra lo que aprendiste hoy. Tómate tu tiempo; puedes intentarlo otra vez.
- Which property lets you change the ORDER of the factors?
- Commutative
- Associative
- Distributive
- Identity
- Which property lets you change the GROUPING of the factors?
- Commutative
- Distributive
- Identity
- Associative
- What is 4 × 17 × 25?
- 170
- 425
- 1,000
- 1,700