McGraw Hill My Math Grade 4 Chapter 5 Lesson 6 Answer Key Problem-Solving Investigation: Make a Table

All the solutions provided in McGraw Hill Math Grade 4 Answer Key PDF Chapter 5 Lesson 6 Problem-Solving Investigation: Make a Table will give you a clear idea of the concepts.

McGraw-Hill My Math Grade 4 Answer Key Chapter 5 Lesson 6 Problem-Solving Investigation: Make a Table

Learn the Strategy
Each roller coaster car holds 18 people. Every minute, a new car is filled. Make a table to find how many people can ride it in 60 minutes.
McGraw Hill My Math Grade 4 Chapter 5 Lesson 6 Answer Key Problem-Solving Investigation Make a Table 1
1. Understand
What facts do you know?
There are ____ people per car.
What do you need to find?
the number of _____ who can ride in ___ minutes.
2. Plan
I can make a table to find the number of people who can ride in ____ minutes.
3. Solve.
Start by finding the product of 18 and 10. 18 × 10 = 180
McGraw Hill My Math Grade 4 Chapter 5 Lesson 6 Answer Key Problem-Solving Investigation Make a Table 8
So ____ people can ride the roller coaster in 60 minutes.
4. Check
Does your answer make sense? Explain.
Yes. ___ × _____ = _____
Answer: There are 18 people per car.
Now, we will find.
The number of people who can ride in 60 minutes.
I can make a table to find the number of people who can ride in 60 minutes.
McGraw Hill My Math Grade 4 Chapter 5 Lesson 6 Answer Key Problem-image
Yes, 16 x 80 = 1080.
Explanation:
Given that,
Each roller coaster car holds 18 people.
Every minute, a new car is filled.
Now, we will make a table to determine how many people can ride it in 60 minutes.
So, for 10 minutes = 10 x 18 = 180 passengers.
20 minutes = 20 x 18 = 360 passengers.
30 minutes = 30 x 18 = 540 passengers.
40 minutes = 40 x 18 = 720 passengers.
50 minutes = 50 x 18 = 900 passengers.
Then 60 minutes = 60 x 18 = 1080 passengers.
Therefore,1080 passengers can ride in 60 minutes.

Practice the Strategy

There are 20 sea lions in a circus. Each sea lion can juggle 5 balls at a time. How many balls will the sea lions need for their act if they all perform at the same time?

McGraw Hill My Math Grade 4 Chapter 5 Lesson 6 Answer Key Problem-Solving Investigation Make a Table 2

1. Understand
What facts do you know?
_____________
_____________

What do you need to find?
_____________
_____________
2. Plan
_____________
_____________
3. Solve
_____________
4. Check
Does your answer make sense? Explain.
_____________
Answer: The fact I know that is, there are 20 sea lions who can each juggle 5 balls at a time.
I need to find the total number of balls that will be needed.
I plan to organize the information in a table to solve the problem.
McGraw Hill My Math Grade 4 Chapter 5 Lesson 6 Answer Key Problem-image(i)
check, 20 number of lions x 5balls = 100 balls.
So, 100 balls are needed for 20 sea lions.
Explanation:
Given that,
There are 20 sea lions in a circus.
Each sea lion can juggle 5 balls at a time.
Now, we will find out how many balls will the sea lions need for their act if they all perform at the same time.
So, the value is
For 5 lions, 5 balls i.e., 5 x 5 = 25
10 lions x 5 balls = 50 balls.
15 x 5 = 75 balls.
20 x 5 = 100 balls.
Hence, 100 balls are needed for 20 sea lions.

Apply the Strategy

Solve each problem by making a table.

Question 1.
A page from Dana’s album is shown. Dana puts the same number of stickers on each page. She has 30 pages of stickers. How many stickers does she have in all?
Dana has _____ stickers in all.
McGraw Hill My Math Grade 4 Chapter 5 Lesson 6 Answer Key Problem-Solving Investigation Make a Table 3

Answer: Dana has 360 stickers in all.
Explanation:
Given that,
A page from Dana’s album is shown.
Dana puts the same number of stickers on each page.
She has 30 pages of stickers.
We need to find out how many stickers she has in all.
First, count the number of stickers on a given page.
The number of stickers is 12.
Now, find the number of stickers for 30 pages.
So, 12 x 30 = 360 stickers.
Hence, Dana has 360 stickers in all.

Question 2.
West Glenn School has 23 students in each class. There are 6 fourth-grade classes. About how many fourth-grade students are there in all? There are about ____ students. I solved this by
__________________
__________________
__________________

Answer: There are about 138 students.
Explanation:
Given the data is,
West Glenn School has 23 students in each class.
There are 6 fourth-grade classes.
We will find out how many fourth-grade students are there in all.
So, the values are 23 and 6.
McGraw Hill My Math Grade 4 Chapter 5 Lesson 6 Answer Key Problem-image(ii)
Hence, there are about 138 students.

Question 3.
Mathematical PRACTICE 3 Draw a Conclusion Evita completed 30 problems for her math homework each night. She has math homework five nights a week. Write a real-world problem using this information. Then solve.
Answer: Evita doing 150 math homework problems in five nights.
Explanation:
As given in the question,
Evita completed 30 problems for her math homework each night.
She has math homework five nights a week.
Now, we need to find out in how many minutes Evita completes his homework.
So, the values are 30 and 5.
McGraw Hill My Math Grade 4 Chapter 5 Lesson 6 Answer Key Problem-image(iii)
Therefore, she has done 150 math problems homework in five nights.

Question 4.
Ling exercises for 45 minutes 2 times a day. If she keeps up this schedule for 30 days, how many hours will she exercise in all?
Answer: 45 hours she exercises in all.
Explanation:
Given that,
Ling exercises for 45 minutes 2 times a day.
If she keeps up this schedule for 30 days.
Now, we will find out how many hours will she exercise in all.
We know that 1 hour = 60 minutes.
So, 45 minutes x 2 = 90 minutes.
For 30 days, 30 x 90 = 2700 minutes.
But, we want the value in hours. So, divide 2700 minutes by 60 minutes then it is,
McGraw Hill My Math Grade 4 Chapter 5 Lesson 6 Answer Key Problem-image(iv)
The quotient value is 45.
Hence, the number of hours is 45 hours.

Review the Strategies

Use any strategy to solve each problem.

  • Make a table.
  • Find an estimate or exact answer.
  • Find reasonable answers.
  • Draw a diagram.

Question 5.
Corey and his 2 friends earn $12 each for doing yard work. How much money will they get paid altogether if they work on 5 yards? Make a table.
3 friends × $12 a yard = $36
McGraw Hill My Math Grade 4 Chapter 5 Lesson 6 Answer Key Problem-Solving Investigation Make a Table 9

Answer: If they work on 5 yards they will be paid $180 altogether.
McGraw Hill My Math Grade 4 Chapter 5 Lesson 6 Answer Key Problem-image(vi)
Explanation:
Given that,
Corey and his 2 friends earn $12 each for doing yard work.
Now, we will find out how much money will they get paid altogether if they work on 5 yards and make a table.
So, the value is 3 friends and  $12 a yard
i.e., 3 x $12 =$36.
1 yard = 1 x $36 = $36.
2 yard = 2 x $36 = $72.
3 yard = 3 x $36 = $108.
4 yard = 4 x $36 = $144.
5 yard = 5 x $36 = $180.
The making of a table is,
McGraw Hill My Math Grade 4 Chapter 5 Lesson 6 Answer Key Problem-image(vi)
Hence, for 5 yards altogether they get paid $180.

Question 6.
A lemur sleeps 16 hours each day. A sloth sleeps 4 more hours each day than a lemur. How many total hours of sleep do a lemur and a sloth get during two days?
Answer: A total of 72 hours of sleep for a lemur and a sloth in two days.
Explanation:
As given in the equation,
A lemur sleeps 16 hours each day.
A sloth sleeps 4 more hours each day than a lemur.
Now, we will find out how many total hours of sleep a lemur and a sloth get during two days.
So, the sloth sleeps 20 hours. Because a sloth sleeps extra 4 hours i.e., 16 + 4 = 20.
Then altogether both slept, 16 + 20 = 36.
For 2 days, 36 x 2 = 72 hours.
Therefore, sloths and lemurs altogether sleep 72 hours.

Question 7.
A lizard eats 6 crickets each day. How many crickets does it eat in 13 weeks?

Answer: 546 crickets a lizard eats in 13 weeks.
Explanation:
Given that,
A lizard eats 6 crickets each day.
Now, we will find out how many crickets it eats in 13 weeks.
We know that 1 week = 7 days.
For 13 weeks = 13 x 7 = 91.
So, the values are 6 and 91.
McGraw Hill My Math Grade 4 Chapter 5 Lesson 6 Answer Key Problem-image(vii)
Hence, 546 crickets a lizard eats in 13 weeks.

Question 8.
Mathematical PRACTICE 5 Use Math Tools Write a real-world problem that would involve making a table to find the answer.
Answer: The real-world problem is,
Each box has 15 watermelons. How many watermelons are in 4 boxes?
Making a table for finding the answer.
So, the table is
McGraw Hill My Math Grade 4 Chapter 5 Lesson 6 Answer Key Problem-image(viii)
So, in 4 boxes there are 60 watermelons.

Question 9.
Pete spends 30 minutes a night reading. How many hours does he spend reading in a 30-day month?
Answer: 15 hours he spends reading in a 30-day month.
Explanation:
Given that,
Pete spends 30 minutes a night reading.
Now, we will find out how many hours he spends reading in a 30-day month.
So, the values are 30 minutes per day.
then 30 days = 30 minutes x 30 = 900 minutes.
But, we want time in hours. We know that 1 hour = 60 minutes.
i.e., 900/60 = 15 hours.
Therefore, he spends on reading in a 30-day month is 15 hours.

McGraw Hill My Math Grade 4 Chapter 5 Lesson 6 My Homework Answer Key

Problem Solving

Question 1.
Mrs. Shelley’s class is reading The Lion, the Witch, and the Wardrobe. If they read 16 pages every week, how many pages can they read in 5 weeks? Solve the problem by making a table.
McGraw Hill My Math Grade 4 Chapter 5 Lesson 6 Answer Key Problem-Solving Investigation Make a Table 5
McGraw Hill My Math Grade 4 Chapter 5 Lesson 6 Answer Key Problem-Solving Investigation Make a Table 4

Answer: The making table is below,
McGraw Hill My Math Grade 4 Chapter 5 Lesson 6 Answer Key Problem-image(ix)
Explanation:
Given the data,
Mrs. Shelley’s class is reading The Lion, the Witch, and the Wardrobe.
If they read 16 pages every week.
Now, we will find how many pages can they read in 5 weeks.
So, the values are
1 week = 16 pages i.e., 1 x 16
2 weeks = 2 x 16 = 32 pages.
3 weeks = 3 x 16 = 48 pages.
4 weeks = 4 x 16 = 64 pages.
5 weeks = 5 x 16 = 80 pages.
Hence, for 5 weeks they read 80 pages.

Solve each problem by making a table.

Question 2.
Mathematical PRACTICE 8 Look for a Pattern Fiona finds 1 shell on her first day at the beach. Every day that week, she finds twice as many shells as she did the day before. How many shells does Fiona find on the seventh day?
McGraw Hill My Math Grade 4 Chapter 5 Lesson 6 Answer Key Problem-Solving Investigation Make a Table 6
Answer: Fiona finds 64 shells on the seventh day.
Explanation:
Given that,
Fiona finds 1 shell on her first day at the beach.
Every day that week, she finds twice as many shells as she did the day before.
Now, we will find out how many shells Fiona find on the seventh day.
So, the value is,
For first day finds 1 shell.
For second day twice finds means 2 shells.
For third day twice finds means 4 shells.
For fourth day twice finds means 8 shells.
For fifth day twice finds means 16 shells.
For sixth day twice finds means 32 shells.
For  seventh day twice finds means 64 shells.
Therefore, Fiona finds 64 shells on the seventh day.

Question 3.
The parking garage holds 300 cars on each level. There are 4 levels in the garage. How many cars can the parking garage hold in all?
Answer: 1200 cars can parking garage hold in all.
Explanation:
Given that,
The parking garage holds 300 cars on each level.
There are 4 levels in the garage.
Now, we will find out how many cars can the parking garage hold in all.
So, the values are 300 and 4.
i.e., 300 x 4 = 1200
Hence, 1200 cars can the parking garage hold in all.

Question 4.
Jonah sets the table for breakfast and dinner every Monday, Wednesday, and Friday. How many times does he set the table in six weeks?
Answer: 18 times he set the table in six weeks.
Explanation:
As given in the question,
Jonah sets the table for breakfast and dinner every Monday, Wednesday, and Friday.
Now, we will find out how many times he set the table in six weeks.
Based on the given information, per week he sets the table is 3 times.
For 6 weeks, he set the table is
3 x 6 = 18 times.
Therefore, 18 times he set the table in six weeks.

Question 5.
Tony and his brother have 20 thank-you cards to write. If they each write 2 per day, how many days will it take them to finish?
Answer: 5 days will it take to finish it.
Explanation:
As given in the question,
Tony and his brother have 20 thank-you cards to write.
If they each write 2 per day, then how many days will it take them to finish? Now, we will find it.
Each person writes 2 per day. So, 2 people write 4 per day.
Then the values is 4 and 20. Now, divide it.
20/4 =5.
Thus, they will take 5 days to finish it.

Question 6.
At a dance recital, each dancer performs for 13 minutes. If there are 6 dancers to perform, how long is the recital?
McGraw Hill My Math Grade 4 Chapter 5 Lesson 6 Answer Key Problem-Solving Investigation Make a Table 7

Answer: If there are 6 dancers to perform, the recital long is 78 minutes.
McGraw Hill My Math Grade 4 Chapter 5 Lesson 6 Answer Key Problem-image(x)
Explanation:
Given that,
At a dance recital, each dancer performs for 13 minutes.
If there are 6 dancers to perform, then how long is the recital we can find it.
So, the value is
1 dancer = 13 minutes.
2 dancers = 2 x 13= 26 minutes
3 dancers = 3 x 13 = 39 minutes
4 dancers = 4 x 13 = 52 minutes
5 dancers = 5 x 13 = 65 minutes
6 dancers = 6 x 13 = 78 minutes.
Hence. for 6 dancers the recital length is 78 minutes.

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