Multi-Digit Addition (Standard Algorithm): Grade 2 math

What this covers

Multi-Digit Addition (Standard Algorithm) is taught in Grade 2 (age 7 to 8) as a main teaching focus. It sits in the Number strand.

Worked example

Difficulty scale

The sheet generator offers five difficulty settings for this topic.

1. Two 2-digit numbers with no regrouping
2. Two 3-digit numbers with single regrouping in ones or tens
3. Two 3-digit numbers with multiple regroupings
4. Adding three 3-digit numbers or two 4-digit numbers with carrying
5. Adding 5-digit or 6-digit numbers with carrying across multiple columns

Common mistakes

• Writing two-digit column totals directly into the answer row without carrying
• Forgetting to add the carried digit to the subsequent column

Curriculum links

Indicative matches to Common Core State Standards. Check wording and codes against the official document.

• 2.NBT.B.7 Add and subtract within 1000 using concrete models, drawings, or standard written methods with regrouping.