I can use ratio reasoning to convert between units within the same measurement system.Puedo usar el razonamiento con razones para convertir unidades dentro del mismo sistema de medidas.
MissionMisión · Orbit StationEstación orbital
Mission control needs your math.El control de la misión necesita tus matemáticas.
Orbit Station crews switch between units all day: liters of coolant, meters of cable, kilograms of cargo. A conversion must change the unit without changing the amount.
Las tripulaciones de Orbit Station cambian de unidades todo el día: litros de refrigerante, metros de cable, kilogramos de carga. Una conversión debe cambiar la unidad sin cambiar la cantidad.
Word bankBanco de palabras 4 words4 palabrasconvert, unit ratio, measurement system, …convertir, razón unitaria, sistema de medidas, …
- convertconvertir
- To change a measurement to another unit without changing the amount.Cambiar una medida a otra unidad sin cambiar la cantidad.
- unit ratiorazón unitaria
- A ratio that compares an amount to exactly 1 unit, like 12 inches : 1 foot.Una razón que compara una cantidad con exactamente 1 unidad, como 12 pulgadas : 1 pie.
- measurement systemsistema de medidas
- A family of units that go together, like customary or metric units.Una familia de unidades que van juntas, como las unidades usuales o las métricas.
- perpor
- For each one, as in 12 inches per foot.Por cada uno, como en 12 pulgadas por pie.
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.
- Predict how many inches are in 6 feet before you test. Then use the model to check, and also check 60 inches in feet. Explain which operation you used each time and why.
- A station tool kit measures lengths in four metric units. Which list puts the units in order from the smallest to the largest?
- millimeter, centimeter, meter, kilometer
- kilometer, meter, centimeter, millimeter
- centimeter, millimeter, meter, kilometer
- millimeter, meter, centimeter, kilometer
- A coolant pump moves 2.5 liters each cycle. What is 2.5 × 1,000?
- A cargo bay holds 4,800 grams of samples. What is 4,800 ÷ 1,000?
- 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.
- There are 12 inches in 1 foot. How many inches are in 5 feet?
- 7 inches
- 17 inches
- 50 inches
- 60 inches
- There are 1,000 milliliters in 1 liter. How many milliliters are in 3 liters?
- 30 mL
- 300 mL
- 1,003 mL
- 3,000 mL
- There are 16 ounces in 1 pound. How many pounds is 48 ounces?
- 3 pounds
- 32 pounds
- 64 pounds
- 768 pounds
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.
- Fill in the table
- Diamond needs 4 liters of water. Her bottle holds 500 milliliters. How many times must she fill it?
- 2 times
- 4 times
- 8 times
- 40 times
- Find the error
- What is the best next move?
- Divide 6.5 by 100, because converting makes it smaller.
- Multiply by 100, because 1 meter is 100 centimeters.
- Multiply by 10, since a centimeter is a tenth of a meter.
- Keep 6.5 and just change the unit name to centimeters.
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.
- How many inches are in 4 feet?
- 3 inches
- 16 inches
- 44 inches
- 48 inches
- A bottle holds 500 milliliters. How many bottles make 4 liters?
- 4
- 8
- 500
- 2,000
- You convert 96 ounces to pounds (16 ounces = 1 pound). Should the number get bigger or smaller?
- Bigger, because 96 is already large
- Smaller, because pounds are the larger unit
- It stays the same
- You cannot tell without the ratio table