Students can use the **Spectrum Math Grade 3 Answer Key**** Chapter 3 Lesson 3.3 Adding 4-Digit Numbers** as a quick guide to resolve any of their doubts

## Spectrum Math Grade 3 Chapter 3 Lesson 3.3 Adding 4-Digit Numbers Answers Key

**Add.**

Question 1.

a.

Answer:

Explanation:

There are two 4-digit numbers given, first add numbers in the ones place, then tens, then hundreds and lastly add numbers in the thousands place, 7865+1192 = 9057.

b.

Answer:

Explanation:

There are two 4-digit numbers given, first add numbers in the ones place, then tens, then hundreds and lastly add numbers in the thousands place, 8654+1219 = 9875.

c.

Answer:

Explanation:

There are two 4-digit numbers given, first add numbers in the ones place, then tens, then hundreds and lastly add numbers in the thousands place, 4320+3069 = 7389.

d.

Answer:

Explanation:

There are two 4-digit numbers given, first add numbers in the ones place, then tens, then hundreds and lastly add numbers in the thousands place, 3543+3921 = 7464.

e.

Answer:

Explanation:

There are two 4-digit numbers given, first add numbers in the ones place, then tens, then hundreds and lastly add numbers in the thousands place, 4293+5176 = 9469.

f.

Answer:

Explanation:

There are two 4-digit numbers given, first add numbers in the ones place, then tens, then hundreds and lastly add numbers in the thousands place, 6405+3398 = 9803.

Question 2.

a.

Answer:

Explanation:

There are two 4-digit numbers given, first add numbers in the ones place, then tens, then hundreds and lastly add numbers in the thousands place, 1982+1782 = 3764.

b.

Answer:

Explanation:

There are two 4-digit numbers given, first add numbers in the ones place, then tens, then hundreds and lastly add numbers in the thousands place, 7083+2907 = 9990.

c.

Answer:

Explanation:

There are two 4-digit numbers given, first add numbers in the ones place, then tens, then hundreds and lastly add numbers in the thousands place, 4325+4986 = 9311.

d.

Answer:

Explanation:

There are two 4-digit numbers given, first add numbers in the ones place, then tens, then hundreds and lastly add numbers in the thousands place, 6057+1239 = 7296.

e.

Answer:

Explanation:

There are two 4-digit numbers given, first add numbers in the ones place, then tens, then hundreds and lastly add numbers in the thousands place, 8761+1032 = 9793.

f.

Answer:

Explanation:

There are two 4-digit numbers given, first add numbers in the ones place, then tens, then hundreds and lastly add numbers in the thousands place, 2305+5747 = 8052.

Question 3.

a.

Answer:

Explanation:

There are two 4-digit numbers given, first add numbers in the ones place, then tens, then hundreds and lastly add numbers in the thousands place, 3050+4707 = 7757.

b.

Answer:

Explanation:

There are two 4-digit numbers given, first add numbers in the ones place, then tens, then hundreds and lastly add numbers in the thousands place, 6932+2349 = 9281.

c.

Answer:

Explanation:

There are two 4-digit numbers given, first add numbers in the ones place, then tens, then hundreds and lastly add numbers in the thousands place, 5437+2968 = 8405.

d.

Answer:

Explanation:

There are two 4-digit numbers given, first add numbers in the ones place, then tens, then hundreds and lastly add numbers in the thousands place, 1718+2347 = 4065.

e.

Answer:

Explanation:

There are two 4-digit numbers given, first add numbers in the ones place, then tens, then hundreds and lastly add numbers in the thousands place, 7923+1250 = 9173.

f.

Answer:

Explanation:

There are two 4-digit numbers given, first add numbers in the ones place, then tens, then hundreds and lastly add numbers in the thousands place, 4523+3962 = 8485.

Question 4.

a.

Answer:

Explanation:

There are two 4-digit numbers given, first add numbers in the ones place, then tens, then hundreds and lastly add numbers in the thousands place, 5431+2989 = 8420.

b.

Answer:

Explanation:

There are two 4-digit numbers given, first add numbers in the ones place, then tens, then hundreds and lastly add numbers in the thousands place, 7986+1479 = 9465.

c.

Answer:

Explanation:

There are two 4-digit numbers given, first add numbers in the ones place, then tens, then hundreds and lastly add numbers in the thousands place, 1119+2459 = 3578.

d.

Answer:

Explanation:

There are two 4-digit numbers given, first add numbers in the ones place, then tens, then hundreds and lastly add numbers in the thousands place, 7239+1635 = 8874.

e.

Answer:

Explanation:

There are two 4-digit numbers given, first add numbers in the ones place, then tens, then hundreds and lastly add numbers in the thousands place, 2450+7267 = 9717.

f.

Answer:

Explanation:

There are two 4-digit numbers given, first add numbers in the ones place, then tens, then hundreds and lastly add numbers in the thousands place, 6527+2985 = 9512.

Question 5.

a.

Answer:

Explanation:

There are two 4-digit numbers given, first add numbers in the ones place, then tens, then hundreds and lastly add numbers in the thousands place, 5431+1982 = 7413.

b.

Answer:

Explanation:

There are two 4-digit numbers given, first add numbers in the ones place, then tens, then hundreds and lastly add numbers in the thousands place, 7986+1246 = 9232.

c.

Answer:

Explanation:

There are two 4-digit numbers given, first add numbers in the ones place, then tens, then hundreds and lastly add numbers in the thousands place, 1543+3989 = 5532.

d.

Answer:

Explanation:

There are two 4-digit numbers given, first add numbers in the ones place, then tens, then hundreds and lastly add numbers in the thousands place, 7121+1923 = 9044.

e.

Answer:

Explanation:

There are two 4-digit numbers given, first add numbers in the ones place, then tens, then hundreds and lastly add numbers in the thousands place, 8763+1005 = 9768.

f.

Answer:

Explanation:

There are two 4-digit numbers given, first add numbers in the ones place, then tens, then hundreds and lastly add numbers in the thousands place, 4321+2387 = 6708.

Question 6.

a.

Answer:

Explanation:

There are two 4-digit numbers given, first add numbers in the ones place, then tens, then hundreds and lastly add numbers in the thousands place, 5450+1987 = 7437.

b.

Answer:

Explanation:

There are two 4-digit numbers given, first add numbers in the ones place, then tens, then hundreds and lastly add numbers in the thousands place, 4733+2576 = 7309.

c.

Answer:

Explanation:

There are two 4-digit numbers given, first add numbers in the ones place, then tens, then hundreds and lastly add numbers in the thousands place, 3981+2877 = 6858.

d.

Answer:

Explanation:

There are two 4-digit numbers given, first add numbers in the ones place, then tens, then hundreds and lastly add numbers in the thousands place, 6986+2928 = 9914.

e.

Answer:

Explanation:

There are two 4-digit numbers given, first add numbers in the ones place, then tens, then hundreds and lastly add numbers in the thousands place, 7181+2111= 9292.

f.

Answer:

Explanation:

There are two 4-digit numbers given, first add numbers in the ones place, then tens, then hundreds and lastly add numbers in the thousands place, 7900+2005 = 9905.

**Solve each problem.**

Question 1.

Two local high schools have 1,523 students and 1,695 students. How many students are there at both high schools together?

One high school has ___________ students.

The other high school has ___________students.

There are a total of __________ students at both high schools.

Answer:

One high school has **__1,523_____** students,

The other high school has **___1,695________** students,

There are a total of **__3,218________** students at both high schools,

Explanation:

Number of students one high school has = 1,523, Number of students in other high school = 1,695, Total number of students = Number of students one high school has + Number of students in other high school = 1,523 + 1,695 = 3,218.

Question 2.

Monica started at an elevation of 1,200 feet for her hiking trip. She hiked up the mountain for 1,320 feet in elevation. How high did she hike?

Monica started at __________ feet in elevation.

She hiked __________ feet in elevation.

She hiked up to an elevation of __________ feet.

Answer:

Monica started at **___1,200_______** feet in elevation,

She hiked **___1,320_______** feet in elevation,

She hiked up to an elevation of **____2,520______** feet,

Explanation:

Elevation at which Monica started = 1,200, Elevation she hiked = 1,320, Total elevation hiked = Elevation at which Monica started + Elevation she hiked = 1,200 + 1,320 = 2,520.

Question 3.

Steve has a coin worth 1,050 dollars. He has another coin worth 1,072 dollars. How much are both coins worth?

Both coins are worth __________ dollars.

Answer:

Both the coins worth a total of 2,122 dollars,

Explanation:

Worth of a single coin = 1,050 dollars, Worth of an other coin = 1,072 dollars, Total worth of the coins = Worth of a single coin + Worth of an other coin = 1,050 + 1,072 = 2,122 dollars.

Question 4.

Roy ran 1,100 yards as a running back during his junior year of high school. During his senior year of high school, he ran 1,500 yards as a running back. How many yards did he run in both years combined?

Roy ran a total of ____ yards for both his junior and senior year of high school.

Answer:

Roy ran a total of **__2,600__** yards for both his junior and senior year of high school.,

Explanation:

Number of yards Roy ran during his junior year of high school = 1,100 yards, Number of yards Roy ran during his senior year of high school = 1,500 yards, Total number of yards Roy ran combined in both years = Number of yards Roy ran during his junior year of high school + Number of yards Roy ran during his senior year of high school = 1,100 + 1,500 = 2,600 yards.