Addition within 10 worksheets
A page of addition facts where every sum is 10 or less, printed in a horizontal layout with a blank for each answer. Focus on one addend or mix all facts, choose 10 to 100 problems, and print with an answer key.
- Fresh problems every time
- Answer key on its own page
- Print or PDF, Letter or A4
- Free, no sign-up
On this page
Facts that stay inside ten
Ten is the anchor of early arithmetic. Our number system groups in tens, and a child who knows that 6 and 4 make 10, that 7 and 3 make 10, can later bend any addition around it. This worksheet gives plenty of repetition with sums that never exceed the limit, written across the page as plain facts like 4 + 3 = ___.
It sits after picture work (see preschool addition worksheets) and before the larger facts that cross ten. Children from late kindergarten through grade 1 are the usual audience, though it works for any learner who still hesitates on small sums.
Making the sheet fit the child
- Operation. The preset is addition. The generator can also print other operations, but this page assumes addition only.
- Fact focus. "All facts in range" gives a shuffled mix. Choose "Only the 3s," for example, and every problem has a 3 in it, either first or second. Use this when a child keeps stumbling on one number. The sums still stay within the largest number you set.
- Largest number. Set the limit from 5 to 20. At 10, the mixed setting keeps every sum at 10 or below. At 5, you get the very first facts.
- Layout. Horizontal is the preset. Vertical stacks each problem, which is helpful for children who will soon do column addition.
- Number of problems. From 10 to 100, in steps of 5. Thirty fits a normal page. At 50 or more the sheet becomes a timed "math minute" style page with smaller type.
- Include the answer key to check at a glance.
Zero is allowed as an addend, so you may see 0 + 6 or 8 + 0. Those are worth keeping, because children need to learn that adding nothing changes nothing.
Worked example: 6 + 4
A child sees 6 + 4 = ___ and is not sure.
- Hold up six fingers on one side, then ask for four more on the other, without counting from the beginning.
- Count on from the bigger number: start at six and say "seven, eight, nine, ten" while raising four fingers.
- Notice that all ten fingers are up. That is a ten-fact.
- Write 10 in the blank.
Then swap the order. The sheet will often show 4 + 6 somewhere else. Ask whether the answer changes. Seeing that it does not is the first taste of the commutative property.
Strategies that speed things up
- Count on from the larger addend. Starting at 6 for 6 + 2 is quicker than starting at 2.
- Doubles. 3 + 3, 4 + 4 and 5 + 5 are easy to remember and anchor the near-doubles (4 + 5 is one more than 4 + 4).
- Make ten. Know the pairs that sum to 10 by heart.
- Check the key for patterns. If every missed fact has a 7 in it, set the focus to the 7s next time.
When the facts feel quick, try the mirror skill in one-digit subtraction, or raise the largest number and move toward 2-digit work.