Students can use the **Spectrum Math Grade 3 Answer Key**** Chapter 3 Lesson 3.2 Adding 3 or More Numbers (3-digit)** as a quick guide to resolve any of their doubts

## Spectrum Math Grade 3 Chapter 3 Lesson 3.2 Adding 3 or More Numbers (3-digit) Answers Key

**Add.**

Question 1.

a.

Answer:

Explanation:

There are three 3-digit numbers in column form, first add numbers in the ones place, then tens and lastly add numbers in the hundreds place, 522+367+151 = 1040.

b.

Answer:

Explanation:

There are three 3-digit numbers in column form, first add numbers in the ones place, then tens and lastly add numbers in the hundreds place, 868+321+405 = 1594.

c.

Answer:

Explanation:

There are three 3-digit numbers in column form, first add numbers in the ones place, then tens and lastly add numbers in the hundreds place, 150+200+300 = 650.

d.

Answer:

Explanation:

There are three 3-digit numbers in column form, first add numbers in the ones place, then tens and lastly add numbers in the hundreds place, 701+231+862 = 1794.

e.

Answer:

Explanation:

There are three 3-digit numbers in column form, first add numbers in the ones place, then tens and lastly add numbers in the hundreds place, 986+105+525 = 1616.

f.

Answer:

Explanation:

There are three 3-digit numbers in column form, first add numbers in the ones place, then tens and lastly add numbers in the hundreds place, 129+318+467 = 914.

Question 2.

a.

Answer:

Explanation:

There are three 3-digit numbers in column form, first add numbers in the ones place, then tens and lastly add numbers in the hundreds place, 803+623+186 = 1612.

b.

Answer:

Explanation:

There are three 3-digit numbers in column form, first add numbers in the ones place, then tens and lastly add numbers in the hundreds place, 545+309+119 = 973.

c.

Answer:

Explanation:

There are three 3-digit numbers in column form, first add numbers in the ones place, then tens and lastly add numbers in the hundreds place, 868+740+809 = 2417.

d.

Answer:

Explanation:

There are three 3-digit numbers in column form, first add numbers in the ones place, then tens and lastly add numbers in the hundreds place, 132+195+118 = 445.

e.

Answer:

Explanation:

There are three 3-digit numbers in column form, first add numbers in the ones place, then tens and lastly add numbers in the hundreds place, 200+300+600 = 1100.

f.

Answer:

Explanation:

There are three 3-digit numbers in column form, first add numbers in the ones place, then tens and lastly add numbers in the hundreds place, 180+240+303 = 723.

Question 3.

a.

Answer:

Explanation:

There are three 3-digit numbers in column form, first add numbers in the ones place, then tens and lastly add numbers in the hundreds place, 861+757+409 = 2027.

b.

Answer:

Explanation:

There are three 3-digit numbers in column form, first add numbers in the ones place, then tens and lastly add numbers in the hundreds place, 863+404+891 = 2158.

c.

Answer:

Explanation:

There are three 3-digit numbers in column form, first add numbers in the ones place, then tens and lastly add numbers in the hundreds place, 731+356+402 = 1489.

d.

Answer:

Explanation:

There are three 3-digit numbers in column form, first add numbers in the ones place, then tens and lastly add numbers in the hundreds place, 865+591+217 = 1673.

e.

Answer:

Explanation:

There are three 3-digit numbers in column form, first add numbers in the ones place, then tens and lastly add numbers in the hundreds place, 238+405+596 = 1239.

f.

Answer:

Explanation:

There are three 3-digit numbers in column form, first add numbers in the ones place, then tens and lastly add numbers in the hundreds place, 898+777+192 = 1867.

Question 4.

a.

Answer:

Explanation:

There are three 3-digit numbers in column form, first add numbers in the ones place, then tens and lastly add numbers in the hundreds place, 341+127+192 = 660.

b.

Answer:

Explanation:

There are three 3-digit numbers in column form, first add numbers in the ones place, then tens and lastly add numbers in the hundreds place, 864+425+323 = 1612.

c.

Answer:

Explanation:

There are three 3-digit numbers in column form, first add numbers in the ones place, then tens and lastly add numbers in the hundreds place, 127+291+867 = 1285.

d.

Answer:

Explanation:

There are three 3-digit numbers in column form, first add numbers in the ones place, then tens and lastly add numbers in the hundreds place, 205+876+198 = 1279.

e.

Answer:

Explanation:

There are three 3-digit numbers in column form, first add numbers in the ones place, then tens and lastly add numbers in the hundreds place, 712+490+600 = 1802.

f.

Answer:

Explanation:

There are three 3-digit numbers in column form, first add numbers in the ones place, then tens and lastly add numbers in the hundreds place, 750+400+203 = 1353.

Question 5.

a.

Answer:

Explanation:

There are four 3-digit numbers in column form, first add numbers in the ones place, then tens and lastly add numbers in the hundreds place, 591+603+907+432 = 2533.

b.

Answer:

Explanation:

There are four 3-digit numbers in column form, first add numbers in the ones place, then tens and lastly add numbers in the hundreds place, 862+191+183+251 = 1487.

c.

Answer:

Explanation:

There are four 3-digit numbers in column form, first add numbers in the ones place, then tens and lastly add numbers in the hundreds place, 892+645+320+123 = 1980.

d.

Answer:

Explanation:

There are four 3-digit numbers in column form, first add numbers in the ones place, then tens and lastly add numbers in the hundreds place, 132+169+119+105 = 525.

e.

Answer:

Explanation:

There are four 3-digit numbers in column form, first add numbers in the ones place, then tens and lastly add numbers in the hundreds place, 323+309+452+690 = 1774.

f.

Answer:

Explanation:

There are four 3-digit numbers in column form, first add numbers in the ones place, then tens and lastly add numbers in the hundreds place, 712+613+518+437 = 2280.

**Solve each problem.**

Question 1.

Joe earned 135 dollars during his first week of work. He earned 213 dollars during his second week of work. He earned 159 dollars during his third week of work. How much money did Joe earn during the three weeks that he worked?

Joe earned _____ dollars during his first week.

Joe earned _____ dollars during his second week.

Joe earned _____ dollars during his third week.

Joe earned _____ dollars for all 3 weeks of work.

Answer:

Joe earned **__135___** dollars during his first week.

Joe earned **__213___** dollars during his second week.

Joe earned **__159___** dollars during his third week.

Joe earned **__507___** dollars for all 3 weeks of work.

Explanation:

Amount earned by Joe in 3 weeks = Amount Joe earned in 1st week + Amount Joe earned in 2nd week + Amount Joe earned in 3rd week = 135 + 213 + 159 = 507 dollars.

Question 2.

On the first floor of a 3-story apartment building, there are 186 apartments occupied. On the second floor, there are 175 apartments occupied. On the third floor, there are 182 apartments occupied. How many apartments are occupied in all?

There are ___ apartments occupied on the first floor.

There are ___ apartments occupied on the second floor.

There are ____ apartments occupied on the third floor.

There are ____ apartments occupied in all.

Answer:

There are **_186__** apartments occupied on the first floor.

There are **_175__** apartments occupied on the second floor.

There are **__182__** apartments occupied on the third floor.

There are **__543__** apartments occupied in all.

Explanation:

Total number of apartments occupied = Number of apartments occupied in 1st floor + Number of apartments occupied in 2nd floor + Number of apartments occupied in 3rd floor = 186 + 175 + 182 = 543.

Question 3.

The following numbers of students attend four different schools: 543, 692, 87, and 603. How many students attend all four schools?

_________ students attend all four schools.

Answer:

Total 1,925 students attend all four schools,

Explanation:

Number of students who attend 1st school = 543, Number of students who attend 2nd school = 692, Number of students who attend 3rd school = 87, Number of students who attend 4th school = 603, Total number of students in all schools = Number of students who attend 1st school + Number of students who attend 2nd school + Number of students who attend 3rd school + Number of students who attend 4th school = 543 + 692 + 87 + 603 = 1,925 students.

Question 4.

In a book, chapter 1 has 112 pages and chapter 2 has 119 pages. Chapter 3 has 103 pages and chapter 4 has 108 pages. How many pages are in the book?

There are ____ pages in the book.

Answer:

There are 442 pages in the book,

Explanation:

Number of pages in 1st chapter = 112, Number of pages in 2nd chapter = 119, Number of pages in 3rd chapter = 103, Number of pages in 4th chapter = 108, Total number of pages in the book = Number of pages in 1st chapter + Number of pages in 2nd chapter + Number of pages in 3rd chapter + Number of pages in 4th chapter = 112 + 119 + 103 + 108 = 442.