Lesson 1.31.3 · Part II
Start hereWords, worked example, and sentence starters
Learning target I can represent a real-world situation with a tape diagram or table and use decimal operations to solve it.
Start hereWords for this lesson
Read each word before you begin. Say it out loud.
| Word | What it means | Example |
|---|---|---|
| representationSpanish: representación | A picture, diagram, table, or equation that shows the mathematics in a situation. | The same 12 shown three ways: a tape diagram, a table, and 3 × 4. |
| tape diagramSpanish: diagrama de cintas | A rectangle cut into equal parts that helps you visualize how a total breaks apart. | One bar of 4,000 passengers cut into equal groups of 80. |
| toolSpanish: herramienta | Anything you choose to help you see relationships and solve a problem — a table, a diagram, a graph. | A table, a number line, or a tape diagram — whichever shows the relationship. |
| ordered pairSpanish: par ordenado | Two numbers that go together, like a time and a number of trips, that you can plot as a point. | (4, 60): 4 hours costs $60 — the hours always come first. |
| round tripSpanish: viaje de ida y vuelta | A complete journey from the start, to the destination, and back to the start. | 5 miles out plus 5 miles back = 10 miles in all. |
Say it and write itSentence starters
Finish each sentence out loud with a partner. Then use them in your writing.
Word bank representationtape diagramtoolordered pairround trip
Watch outA common mistake
Converting minutes to hours by moving the decimal point — 625 minutes is NOT 6.25 hours. An hour is 60 minutes, so divide by 60: 625 ÷ 60 ≈ 10.42 hours.
Lesson 1.31.3 · Part II
Apply Day · Version ASupported practice
Learning target I can represent a real-world situation with a tape diagram or table and use decimal operations to solve it.
-
1Complete each step, then write the final answer.
One ride takes 5.5 minutes. How many minutes do 10 rides take?
Show your workHint Multiply 5.5 × 10. Each digit moves one place to the left.
Final answer: -
2Complete each step, then write the final answer.
One ride takes 7.5 minutes. How many minutes do 20 rides take?
Show your workHint Find 10 rides first. Then double it.
Final answer: -
3Complete each step, then write the final answer.
One trip takes 2.5 minutes. How many minutes do 30 trips take?
Show your workHint Find 10 trips first. Then multiply by 3.
Final answer:
Lesson 1.31.3 · Part II
Apply Day · Version BCore practice
Learning target I can represent a real-world situation with a tape diagram or table and use decimal operations to solve it.
-
1Complete each step, then write the final answer.
One ride takes 12.5 minutes. Jen says 30 rides take 37.5 minutes. Is that reasonable? How many minutes do 30 rides take?
Show your workFinal answer: -
2Complete each step, then write the final answer.
A round trip takes 25 minutes. How many full round trips fit in 3 hours?
Show your workFinal answer: -
3Complete each step, then write the final answer.
One ride takes 6.5 minutes. How many minutes do 20 rides take?
Show your workFinal answer:
Lesson 1.31.3 · Part II
Apply Day · ChallengeExtension
Learning target I can represent a real-world situation with a tape diagram or table and use decimal operations to solve it.
-
1Complete each step, then write the final answer.
A van holds 12 people. 100 people need a ride. Dev says 100 ÷ 12 is about 8.3, so the van needs 8 trips. How many trips are really needed?
Show your workFinal answer: -
2Complete each step, then write the final answer.
One round trip takes 55 minutes. How many full round trips fit in 7 hours?
Show your workFinal answer: -
3Complete each step, then write the final answer.
A song lasts 3.5 minutes. How many full songs can play in 1 hour?
Show your workFinal answer: