Addition & subtractionGrade 3
3-Digit Addition practice
Add two 3-digit numbers in columns with carrying in one or more places, such as 296 + 545 = 841.
Example problems
3
0
5
1
6
9
＋
4
1
7
4
2
9
6
5
4
5
＋
1
1
4
1
8
3
8
7
4
2
2
＋
9
0
1
8
How a practice round works
A round has 10 problems from this skill. Type the digits into the dotted boxes; if a digit is wrong, you simply try again. Get 5 of your last 6 problems right on the first try to master the skill, then keep practicing to earn up to three stars.