# Spectrum Math Grade 4 Chapter 1 Lesson 5 Answer Key Adding Three or More Numbers (2 Digits)

This handy Spectrum Math Grade 4 Answer Key Chapter 1 Lesson 1.5 Adding Three or More Numbers (2 Digits) provides detailed answers for the workbook questions.

## Spectrum Math Grade 4 Chapter 1 Lesson 1.5 Adding Three or More Numbers (2 Digits) Answers Key Question 1.
a.  Explanation:
Ones Place Value
7 + 2 + 3 = 12
Put the 2 in Ones place
Carry the 1 to Tens place
Tens Place Value
1 + 2 + 3 + 4 = 10
Put the 0 in Tens place
Carry the 1 to Hundreds place
Hundreds Place Value
1 = 1
Put the 1 in Hundreds place

b.  Explanation:
Ones Place Value
9 + 8 + 6 = 23
Put the 3 in Ones place
Carry the 2 to Tens place
Tens Place Value
2 + 3 + 4 + 7 = 16
Put the 6 in Tens place
Carry the 1 to Hundreds place
Hundreds Place Value
1 = 1
Put the 1 in Hundreds place

c.  Explanation:
Ones Place Value
8 + 8 + 8 = 24
Put the 4 in Ones place
Carry the 2 to Tens place
Tens Place Value
2 + 4 + 6 + 7 = 19
Put the 9 in Tens place
Carry the 1 to Hundreds place
Hundreds Place Value
1 = 1
Put the 1 in Hundreds place

d.  Explanation:
Ones Place Value
7 + 5 + 3 = 15
Put the 5 in Ones place
Carry the 1 to Tens place
Tens Place Value
1 + 9 + 8 + 6 = 24
Put the 4 in Tens place
Carry the 2 to Hundreds place
Hundreds Place Value
2 = 2
Put the 2 in Hundreds place

e.  Explanation:
Ones Place Value
5 + 4 + 8 = 17
Put the 7 in Ones place
Carry the 1 to Tens place
Tens Place Value
1 + 4 + 7 + 4 = 16
Put the 6 in Tens place
Carry the 1 to Hundreds place
Hundreds Place Value
1 = 1
Put the 1 in Hundreds place

f.  Explanation:
Ones Place Value
7 + 3 + 9 = 19
Put the 9 in Ones place
Carry the 1 to Tens place
Tens Place Value
1 + 9 + 2 + 1 = 13
Put the 3 in Tens place
Carry the 1 to Hundreds place
Hundreds Place Value
1 = 1
Put the 1 in Hundreds place

Question 2.
a.  Explanation:
Ones Place Value
7 + 9 + 2 = 18
Put the 8 in Ones place
Carry the 1 to Tens place
Tens Place Value
1 + 7 + 9 + 3 = 20
Put the 0 in Tens place
Carry the 2 to Hundreds place
Hundreds Place Value
2 = 2
Put the 2 in Hundreds place

b.  Explanation:
Ones Place Value
1 + 9 + 8 = 18
Put the 8 in Ones place
Carry the 1 to Tens place
Tens Place Value
1 + 8 + 1 + 3 = 13
Put the 3 in Tens place
Carry the 1 to Hundreds place
Hundreds Place Value
1 = 1
Put the 1 in Hundreds place

c.  Explanation:
Ones Place Value
3 + 8 + 9 = 20
Put the 0 in Ones place
Carry the 2 to Tens place
Tens Place Value
2 + 5 + 7 + 8 = 22
Put the 2 in Tens place
Carry the 2 to Hundreds place
Hundreds Place Value
2 = 2
Put the 2 in Hundreds place

d.  Explanation:
Ones Place Value
5 + 9 + 8 = 22
Put the 2 in Ones place
Carry the 2 to Tens place
Tens Place Value
2 + 7 + 6 + 7 = 22
Put the 2 in Tens place
Carry the 2 to Hundreds place
Hundreds Place Value
2 = 2
Put the 2 in Hundreds place

e.  Explanation:
Ones Place Value
8 + 7 + 5 = 20
Put the 0 in Ones place
Carry the 2 to Tens place
Tens Place Value
2 + 3 + 5 + 7 = 17
Put the 7 in Tens place
Carry the 1 to Hundreds place
Hundreds Place Value
1 = 1
Put the 1 in Hundreds place

f.  Explanation:
Ones Place Value
2 + 9 + 5 = 16
Put the 6 in Ones place
Carry the 1 to Tens place
Tens Place Value
1 + 9 + 8 + 9 = 27
Put the 7 in Tens place
Carry the 2 to Hundreds place
Hundreds Place Value
2 = 2
Put the 2 in Hundreds place

Question 3.
a.  Explanation:
Ones Place Value
7 + 9 + 9 = 25
Put the 5 in Ones place
Carry the 2 to Tens place
Tens Place Value
2 + 3 + 2 + 4 = 11
Put the 1 in Tens place
Carry the 1 to Hundreds place
Hundreds Place Value
1 = 1
Put the 1 in Hundreds place

b.  Explanation:
Ones Place Value
7 + 8 + 5 = 20
Put the 0 in Ones place
Carry the 2 to Tens place
Tens Place Value
2 + 8 + 7 + 9 = 26
Put the 6 in Tens place
Carry the 2 to Hundreds place
Hundreds Place Value
2 = 2
Put the 2 in Hundreds place

c.  Explanation:
Ones Place Value
8 + 9 + 7 = 24
Put the 4 in Ones place
Carry the 2 to Tens place
Tens Place Value
2 + 3 + 4 + 5 = 14
Put the 4 in Tens place
Carry the 1 to Hundreds place
Hundreds Place Value
1 = 1
Put the 1 in Hundreds place

d.  Explanation:
Ones Place Value
2 + 8 + 6 = 16
Put the 6 in Ones place
Carry the 1 to Tens place
Tens Place Value
1 + 4 + 2 + 6 = 13
Put the 3 in Tens place
Carry the 1 to Hundreds place
Hundreds Place Value
1 = 1
Put the 1 in Hundreds place

e.  Explanation:
Ones Place Value
6 + 5 + 7 = 18
Put the 8 in Ones place
Carry the 1 to Tens place
Tens Place Value
1 + 5 + 6 + 7 = 19
Put the 9 in Tens place
Carry the 1 to Hundreds place
Hundreds Place Value
1 = 1
Put the 1 in Hundreds place

f.  Explanation:
Ones Place Value
9 + 7 + 9 = 25
Put the 5 in Ones place
Carry the 2 to Tens place
Tens Place Value
2 + 1 + 3 + 4 = 10
Put the 0 in Tens place
Carry the 1 to Hundreds place
Hundreds Place Value
1 = 1
Put the 1 in Hundreds place

Question 4.
a.  Explanation:
Ones Place Value
5 + 3 + 7 + 6 = 21
Put the 1 in Ones place
Carry the 2 to Tens place
Tens Place Value
2 + 3 + 7 + 5 + 6 = 23
Put the 3 in Tens place
Carry the 2 to Hundreds place
Hundreds Place Value
2 = 2
Put the 2 in Hundreds place

b.  Explanation:
Ones Place Value
3 + 8 + 0 + 6 = 17
Put the 7 in Ones place
Carry the 1 to Tens place
Tens Place Value
1 + 7 + 2 + 4 + 6 = 20
Put the 0 in Tens place
Carry the 2 to Hundreds place
Hundreds Place Value
2 = 2
Put the 2 in Hundreds place

c.  Explanation:
Ones Place Value
8 + 2 + 8 + 2 = 20
Put the 0 in Ones place
Carry the 2 to Tens place
Tens Place Value
2 + 8 + 2 + 3 + 8 = 23
Put the 3 in Tens place
Carry the 2 to Hundreds place
Hundreds Place Value
2 = 2
Put the 2 in Hundreds place

d.  Explanation:
Ones Place Value
5 + 4 + 3 + 1 = 13
Put the 3 in Ones place
Carry the 1 to Tens place
Tens Place Value
1 + 7 + 2 + 9 + 5 = 24
Put the 4 in Tens place
Carry the 2 to Hundreds place
Hundreds Place Value
2 = 2
Put the 2 in Hundreds place

e.  Explanation:
Ones Place Value
9 + 3 + 7 + 5 = 24
Put the 4 in Ones place
Carry the 2 to Tens place
Tens Place Value
2 + 2 + 9 + 3 + 5 = 21
Put the 1 in Tens place
Carry the 2 to Hundreds place
Hundreds Place Value
2 = 2
Put the 2 in Hundreds place

f.  Explanation:
Ones Place Value
1 + 2 + 5 + 8 = 16
Put the 6 in Ones place
Carry the 1 to Tens place
Tens Place Value
1 + 2 + 6 + 4 + 3 = 16
Put the 6 in Tens place
Carry the 1 to Hundreds place
Hundreds Place Value
1 = 1
Put the 1 in Hundreds place

Question 5.
a.  Explanation:
Ones Place Value
1 + 1 + 9 + 9 = 20
Put the 0 in Ones place
Carry the 2 to Tens place
Tens Place Value
2 + 5 + 7 + 8 + 9 = 31
Put the 1 in Tens place
Carry the 3 to Hundreds place
Hundreds Place Value
3 = 3
Put the 3 in Hundreds place

b.  Explanation:
Ones Place Value
0 + 8 + 9 + 7 = 24
Put the 4 in Ones place
Carry the 2 to Tens place
Tens Place Value
2 + 2 + 1 + 3 + 4 = 12
Put the 2 in Tens place
Carry the 1 to Hundreds place
Hundreds Place Value
1 = 1
Put the 1 in Hundreds place

c.  Explanation:
Ones Place Value
7 + 5 + 3 + 7 = 22
Put the 2 in Ones place
Carry the 2 to Tens place
Tens Place Value
2 + 1 + 4 + 8 + 9 = 24
Put the 4 in Tens place
Carry the 2 to Hundreds place
Hundreds Place Value
2 = 2
Put the 2 in Hundreds place

d.  Explanation:
Ones Place Value
7 + 8 + 4 + 3 = 22
Put the 2 in Ones place
Carry the 2 to Tens place
Tens Place Value
2 + 2 + 5 + 7 + 6 = 22
Put the 2 in Tens place
Carry the 2 to Hundreds place
Hundreds Place Value
2 = 2
Put the 2 in Hundreds place

e.  Explanation:
Ones Place Value
3 + 9 + 7 + 9 = 28
Put the 8 in Ones place
Carry the 2 to Tens place
Tens Place Value
2 + 1 + 3 + 5 + 8 = 19
Put the 9 in Tens place
Carry the 1 to Hundreds place
Hundreds Place Value
1 = 1
Put the 1 in Hundreds place

f.  Explanation:
Ones Place Value
7 + 3 + 1 + 6 = 17
Put the 7 in Ones place
Carry the 1 to Tens place
Tens Place Value
1 + 5 + 3 + 7 + 6 = 22
Put the 2 in Tens place
Carry the 2 to Hundreds place
Hundreds Place Value
2 = 2
Put the 2 in Hundreds place

Question 6.
a.  Explanation:
Ones Place Value
9 + 9 + 8 + 8 = 34
Put the 4 in Ones place
Carry the 3 to Tens place
Tens Place Value
3 + 3 + 2 + 5 + 7 = 20
Put the 0 in Tens place
Carry the 2 to Hundreds place
Hundreds Place Value
2 = 2
Put the 2 in Hundreds place

b.  Explanation:
Ones Place Value
3 + 5 + 7 + 9 = 24
Put the 4 in Ones place
Carry the 2 to Tens place
Tens Place Value
2 + 1 + 2 + 7 + 8 = 20
Put the 0 in Tens place
Carry the 2 to Hundreds place
Hundreds Place Value
2 = 2
Put the 2 in Hundreds place

c.  Explanation:
Ones Place Value
7 + 3 + 8 + 4 = 22
Put the 2 in Ones place
Carry the 2 to Tens place
Tens Place Value
2 + 2 + 5 + 6 + 7 = 22
Put the 2 in Tens place
Carry the 2 to Hundreds place
Hundreds Place Value
2 = 2
Put the 2 in Hundreds place

d.  Explanation:
Ones Place Value
7 + 8 + 1 + 7 = 23
Put the 3 in Ones place
Carry the 2 to Tens place
Tens Place Value
2 + 2 + 4 + 3 + 9 = 20
Put the 0 in Tens place
Carry the 2 to Hundreds place
Hundreds Place Value
2 = 2
Put the 2 in Hundreds place

e.  Explanation:
Ones Place Value
2 + 7 + 9 + 5 = 23
Put the 3 in Ones place
Carry the 2 to Tens place
Tens Place Value
2 + 2 + 1 + 3 + 4 = 12
Put the 2 in Tens place
Carry the 1 to Hundreds place
Hundreds Place Value
1 = 1
Put the 1 in Hundreds place

f.  