This math topic focuses on practicing the addition of three-digit numbers. It includes multiple exercises where two three-digit whole numbers need to be added together. Each question presents a problem along with multiple choice answers, testing the ability to perform addition correctly and choose the right result among various options. This is part of a broader unit on addition and subtraction of integers involving two and three-digit numbers.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.

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Addition - Whole Number 3 digit + 3 digit Worksheet

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Addition - Whole Number 3 digit + 3 digit
1
Add these numbers
103 + 337
a
440
b
587
c
293
d
1,173
e
147
f
733
2
Add these numbers
103 + 617
a
1,920
b
480
c
720
d
0
e
1,680
f
1,440
3
Add these numbers
103 + 139
a
242
b
81
c
323
d
0
e
161
f
403
4
Add these numbers
116 + 396
a
341
b
1,365
c
1,195
d
512
e
853
f
1,024
5
Add these numbers
116 + 515
a
631
b
1,683
c
0
d
841
e
1,052
f
421
6
Add these numbers
118 + 365
a
644
b
161
c
483
d
322
e
0
f
805
7
Add these numbers
116 + 728
a
563
b
0
c
281
d
1,969
e
1,125
f
844
8
Add these numbers
103 + 277
a
760
b
0
c
380
d
633
e
127
f
507