Pick a level and answer real questions right here. Every question is made fresh, so there is always another one, and a wrong answer shows how to solve it step by step. These are the same questions Kiwi Tutor gives kids in their own practice.
Roughly 1st through 4th grade, but there is no grade picker: level 1 is sums within 10 and level 10 is multi-step word problems.
Fast, sure facts come first. Under the Common Core standards most US schools follow, kids are expected to add within 20 fluently by the end of 2nd grade. That speed is what frees them up later, when one sum is just a step inside a bigger problem.
Carrying (also called regrouping) is where most kids slow down. It helps to say what is happening: 10 ones become 1 ten, so a 1 moves to the tens column. Keep the columns lined up, start with the ones, and check the answer by subtracting.
In a Kiwi Tutor account, each kid gets their own Addition level, set by a short placement quiz. A few right answers in a row and the next questions get a little harder; a couple of misses and they ease back. Wrong answers come with the same step-by-step explanation you see here, missed topics come back until they stick, and a parent can see each kid's accuracy by topic.
Free covers Addition, Subtraction, Multiplication and Division with unlimited adaptive practice for up to 2 kids. The family plan ($10/mo) adds Fractions, Decimals, Pre-Algebra, every other subject and up to 5 kids. Compare the plans ->
Is this addition practice free?
Yes. The practice box on this page is free with no sign-up. In a free Kiwi Tutor account, Addition, Subtraction, Multiplication and Division come with unlimited adaptive practice for up to 2 kids.
What grade is this addition practice for?
Roughly 1st through 4th grade, but there is no grade picker: level 1 is sums within 10 and level 10 is multi-step word problems. In a Kiwi Tutor account, a short placement quiz finds where each kid should start.
Does it cover carrying and word problems?
Yes. Levels 4 and 6 are addition with carrying, and levels 7 and 10 are word problems, from one step to several.
Want it on paper? Free printable addition worksheets with answer keys ->