Students fluently recall addition and subtraction facts within 20, including zero, doubles, near-doubles, make-ten strategies, missing values, and adding or subtracting 10, 100, and multiples of 10 using place value through 1,000. They add and subtract two-digit numbers, including one-digit addends or subtrahends, with and without regrouping, add three two-digit numbers, and use partial sums and place-value representations for addition within 1,000. They solve joining, separating, comparison, part-part-whole, missing-addend, and two-step problems within 100, write related equations, and informally estimate sums and differences using friendly tens or hundreds through 1,000.
On this page:
- Master skills like “Add zero”, “Subtract zero”, and “Make ten to add” with unlimited, free practice problems
- Download (or modify) free worksheets on Addition and Subtraction you can use at home or in class with practice problems across all skills in this group including “Use partial sums”, “Use doubles facts”, “Add 10 to a number”.
- Start working on adaptive units like “Addition and Subtraction of Integers - 1 Digit” or “Addition and Subtraction of Integers - 1 and 2 Digit” that include these skills and will introduce and scaffold the skills carefully for maximum learning.
Addition and Subtraction: Individual Skills
Master 37 individual skills with free practice problems. Mouseover to see the skill's practice problems. Create a free account to track your progress.
Your results
- Add 10 to a number
- Add 100 to a number
- Add a 1-digit number to a 2-digit number with regrouping
- Add a 1-digit number to a 2-digit number without regrouping
- Add multiples of 10 mentally
- Add two 2-digit numbers with regrouping
- Add two 2-digit numbers without regrouping
- Add zero
- Estimate differences informally
- Estimate sums informally
- Find a missing addend
- Find a missing value in a subtraction equation
- Make ten to add
- Make ten to subtract
- Recall addition facts to 10
- Recall addition facts to 20
- Recall subtraction facts within 10
- Recall subtraction facts within 20
- Solve comparison problems
- Solve joining addition problems
- Solve part-part-whole problems
- Solve separating subtraction problems
- Solve two-step addition and subtraction problems
- Subtract 10 from a number
- Subtract 100 from a number
- Subtract a 1-digit number from a 2-digit number with regrouping
- Subtract a 1-digit number from a 2-digit number without regrouping
- Subtract a number from itself
- Subtract multiples of 10 mentally
- Subtract two 2-digit numbers with regrouping
- Subtract two 2-digit numbers without regrouping
- Subtract zero
- Use counting on to subtract
- Use doubles facts
- Use near-doubles facts
- Use partial sums
- Write an equation for a subtraction story
Practice 'Add 10 to a number'
Select any skill in this group by hovering over the list above. Unlimited free practice problems, automatically graded.
Hover a skill above to start practicing.
Download/Modify Free Grade 2 'Addition and Subtraction' Worksheet
Print this free 'Addition and Subtraction' worksheet to practice these skills away from the computer. Click 'Modify' to easily customize this worksheet to your exact needs.
This Worksheet Includes:
- Add 10 to a number
- Add 100 to a number
- Add a 1-digit number to a 2-digit number with regrouping
- Add a 1-digit number to a 2-digit number without regrouping
- Add multiples of 10 mentally
- Add two 2-digit numbers with regrouping
- Add two 2-digit numbers without regrouping
- Add zero
Units Teaching These Skills
These adaptive units introduce, teach, or reinforce skills in this group (Addition and Subtraction) through scaffolded problems that grow in difficulty as concepts are understood.