# Addition and subtraction

### Practice

Add within 5Get 5 of 7 questions to level up!

Subtract within 5Get 5 of 7 questions to level up!

### Practice

Add within 20Get 5 of 7 questions to level up!

Subtract within 20Get 5 of 7 questions to level up!

### Learn

### Practice

Add 2-digit numbers by making tensGet 3 of 4 questions to level up!

Add 2-digit numbers by making tens 2Get 3 of 4 questions to level up!

Select strategies for adding within 100Get 5 of 7 questions to level up!

Add and subtract using a number lineGet 3 of 4 questions to level up!

### Learn

### Practice

Add within 100Get 5 of 7 questions to level up!

### Learn

### Practice

Subtract within 100Get 5 of 7 questions to level up!

### Learn

### Practice

Add and subtract within 100 word problems 1Get 5 of 7 questions to level up!

Add and subtract within 100 word problems 2Get 5 of 7 questions to level up!

### Learn

### Practice

Add within 1000Get 3 of 4 questions to level up!

Multi-digit additionGet 3 of 4 questions to level up!

### Learn

### Practice

Subtract within 1000Get 3 of 4 questions to level up!

Multi-digit subtractionGet 3 of 4 questions to level up!