We included HMH Into Math Grade 4 Answer Key PDF Module 2 Lesson 1 Add Whole Numbers and Assess Reasonableness to make students experts in learning maths.
HMH Into Math Grade 4 Module 2 Lesson 1 Answer Key Add Whole Numbers and Assess Reasonableness
I Can add whole numbers greater than 1,000 using place value and a grid with regrouping.
Spark Your Learning
In 2016, Washington’s Port Townsend-Coupeville ferry had about 329 thousand vehicle passengers and about 118 thousand foot passengers. How many passengers rode the ferry in 2016? How can you write this using numbers only?
Show your thinking.
Turn and Talk Why would an estimate instead of an exact answer be a reasonable solution to this problem?
Explanation:
Estimation makes to found the sum easier
Build Understanding
1. In 2015, North Dakota reported 545,027 licensed drivers, and Wyoming reported 422,450 licensed drivers. How many licensed drivers were there in both states? Use rounding as a strategy to show your answer is reasonable.
Use the grid to help you solve the problem.
There were 967,477 licensed drivers ¡n both states.
A. Round each addend to the nearest ten thousand and then add. Show your work.
_______________________
Explanation:
545,027 is rounded as 550,000
422,450 is rounded as 420,000
About how many total licensed drivers were there in 2015?
_______________________
Explanation:
550,000 + 420,000 = 970,000
970,000 total licensed drivers were there in 2015.
Connect to Vocabulary
To estimate is to find an answer that is close to the exact amount.
B. Does your estimate show your answer is reasonable? Explain.
_______________________
_______________________
Explanation:
My estimation and the exact has a little vary so my answer is reasonable.
Turn and Talk How can you use a grid as a place-value chart to help you add greater numbers?
Step It Out
2. In January, 611,749 domestic passengers and 106,909 international passengers departed or arrived at Terminal 4 of the airport. What number of passengers departed or arrived at Terminal 4 in January?
Estimate. Then find the sum.
A. Round the numbers to the nearest hundred thousand. Then add.
B. Use the grid to help you align the addends by place value. Find the sum.
In January, _____ passengers arrived or departed at Terminal 4.
C. Compare your sum to your estimate. Is your answer reasonable? Explain.
Explanation:
611,749 + 106,909 = 718,658
611,749 Round the numbers to the nearest hundred thousand = 600,000
106,909 Round the numbers to the nearest hundred thousand = 100,000
600,000 + 100,000 = 700,000
By this we can say that my estimation is correct
Check Understanding Math Board
Question 1.
A company’s buses make 480,000 trips. A second company’s buses make 44,100 trips. How many trips do the two companies’ buses make? ____
Answer:
480,000 + 44,100 = 524,100
Explanation:
Estimation:
A company’s buses make 480,000 trips. A second company’s buses make 44,100 trips.
524100 trips that the two companies’ buses make
Estimate. Then find the sum.
Question 2.
Estimate: ____
Answer:
Explanation:
Estimation:
Rounded to nearest ten thousands
Question 3.
Estimate: ___
Answer:
Explanation:
Estimation:
Rounded to nearest ten thousands
Question 4.
Estimate:
Answer:
Explanation:
Estimation:
82,349 ; 16,624 are written as 82,000 + 16,000 = 98,000
Rounded to nearest ten thousands
On Your Own
Question 5.
Construct Arguments During a year, 580,242 vehicle passengers and 299,860 foot passengers ride on a ferry. How many passengers ride the ferry that year? Explain how you know your answer is reasonable.
_________________________
_________________________
_________________________
Answer:
580,242 + 299,860 = 880,102
Explanation:
Estimation:
580,242 ; 299,860 are written as 580,000 + 300,000 = 880,000
by this we can say that my estimation is reasonable.
Rounded to nearest ten thousands
Question 6.
Use Structure The daily average number of bus passengers for different local routes is shown. How many bus passengers are there daily?
_______________________
Answer:
577,547 bus passengers are there daily
Explanation:
Red + green + blue is 124,707 + 358,305 + 94,535 = 577,547
Estimate. Then find the sum.
Question 7.
Estimate: _____
Answer:
Explanation:
Estimation:
1223 ; 2009 are written as 1200 + 2000 = 3200
Rounded to nearest thousands
Question 8.
Estimate: _____
Answer:
Explanation:
Estimation:
609,987 ; 123,654 are written as 600,000 + 120,000 = 720,000
Rounded to nearest ten thousands
Question 9.
Estimate: ____
Answer:
Explanation:
Estimation:
99,858 ; 27,415 are written as 10,000 + 30,000 = 40,000
Rounded to nearest ten thousands
Question 10.
Open Ended Write and solve a real-world problem using 461,283 and 215,079 as addends.
__________________________________________
__________________________________________
__________________________________________
Answer:
In America there are around 461,283 bird species and 215,079 water species are there.
what is the total estimation of birds and water animals
Explanation:
Estimation:
461,283,215,079 is written as 460,000 + 220,000 = 680,000
Rounded to nearest ten thousands
I’m in a Learning Mindset!
Did using a grid help me add greater numbers? How?
Explanation:
Buy counting the grids makes the addition easier.
so, that helps to add the greatest numbers.