## Free addition worksheets from K5 Learning

Our 3rd grade addition worksheets include both "mental addition problems" intended for students to solve in their heads and multi-digit column form addition questions giving practice in computational skills.   These grade 3 math worksheets complement our online math program.

Example

Complete one hundred (missing addend)   ___ + 85 = 100
20 + 39 = ___
Add whole tens to 2-digit numbers (missing addend)   90 + ___ = 141

94 + 7 = ___
Add a 1-digit number to a 2-digit number - missing addend   91 + ___ = 96

Adding one 2-digit and two 1-digit numbers   4 + 2 + 17 =
865 + 5 = ___

Adding two whole tens and two 1-digit numbers   70 + 7 = 8 + 10 =
60 + 50 + 40 = ___
40+10+10+60= ___
300 + 100 = ___
Adding to complete whole thousands   7300 + ___ = 9000

Adding whole thousands and whole hundreds   7100 + 300 =
Adding whole thousands to another number   6349 + 4000 = ___

Adding two 2-digit numbers, no carrying

22

+ 23

38

+ 27

Adding two 3-digit numbers, no carrying

123

+ 234

216

+ 955

342

+ 123

+ 456

456

+ 123

+ 567

+ 890

5,432

+ 1,543

9,002

+ 1,004

+ 2,567

1,111

+ 2,222

+ 3,333

+ 4,444

2nd page

Multiple versions of
each worksheet

All worksheets
are pdf documents

## Recommended Workbooks

Browse our bookstore for reading and math workbooks that are ideal for for independent or parent led-study. The workbooks contain both instruction and exercises and can be downloaded and printed.

## What is K5?

K5 Learning offers reading and math worksheets, workbooks and an online reading and math program for kids in kindergarten to grade 5.

In our online program, kids work at their own level and their own pace through a personalized curriculum of reading and math lessons; each lesson is accompanied by customized printable worksheets for further study.

K5 helps your children build good study habits and excel in school.

## Free trial

We offer a 14-day free trial of our online program. The free trial includes free reading and math assessments.