Free printable practice
Adding Doubles Plus 1 Practice Activities
Grade 1 worksheets help children use known doubles facts to solve near-doubles addition facts such as 6 + 7 and 8 + 9.
Free printable worksheet PDFs
Preview every available page, then download the free worksheet PDF for home, homeschool, tutoring, or classroom practice.
Preview the exact activity before downloading it.
Practice that builds confidence
What “doubles plus 1” means
These Grade 1 addition worksheets focus on the doubles plus 1 strategy: using a known doubles fact to solve an addition fact with two neighboring numbers. Children practise seeing that 4 + 5 is close to 4 + 4, so the answer is one more.
The printable activities include fact practice, visual models, missing-number items, and mixed addition problems that build fluency without relying only on counting. They help children connect doubles, near doubles, addends, and sums in a clear, repeatable way.
Doubles plus 1 is a mental addition strategy for facts with addends that are next to each other, such as 3 + 4, 6 + 7, or 8 + 9. A child first remembers the double, then adds one more: 6 + 6 = 12, so 6 + 7 = 13. This turns a harder fact into a familiar fact.
How the practice builds
The worksheets begin with recognizable doubles, then move to near doubles where one addend is one greater than the other. Children may see number sentences, ten-frame-style groupings, dots, or simple matching tasks. As the pages progress, they practise choosing the helpful double, writing the related equation, and solving mixed problems more independently.
A simple parent routine
At home, start by reviewing doubles aloud: “5 + 5 = 10.” Then show a near double: “What is 5 + 6?” Ask your child to point to the double they know and say, “Double 5 is 10, so 5 + 6 is 11.” Use small objects like buttons or cereal pieces to build two groups, then add one extra to one group so the idea is visible before it becomes mental math.
Classroom uses for teachers
Teachers can use these pages for morning work, addition centers, small-group reteaching, or quick fluency checks. They also work well after a doubles lesson, because students must apply the fact rather than simply recite it. Pair work is useful: one student names the double, and the other explains the plus 1 step.
Common errors to watch for
Some children double the larger number instead of the smaller one, turning 7 + 8 into 8 + 8 instead of 7 + 7 + 1. Others forget the “plus 1” step or count all from one. Encourage them to circle the smaller addend, state its double, then add one more.
Free printable PDF download
Use this adding doubles plus 1 worksheets grade 1 page to preview the activity, print it, or download it as a PDF for quick practice. It works well for homework, homeschool lessons, tutoring, morning work, revision, and classroom centers.
Answers and answer key support
After the child completes the worksheet independently, parents and teachers can use the answer support or answer key information to check the work, review mistakes, and choose the next practice step.
Why iBloom worksheets help
iBloom worksheets keep the focus on one Grade 1 addition strategy at a time, so children can notice the pattern and gain confidence. The mix of equations and visual supports helps students move from concrete thinking to faster fact recall. A child-friendly strategy is: “Find the twin number, double it, then hop one more.”
Helpful answers
Frequently asked questions
What is the doubles plus 1 strategy?
It is an addition strategy for neighboring addends. For example, to solve 7 + 8, a child uses the known double 7 + 7 = 14 and adds 1 more to get 15.
Which facts are best for doubles plus 1 practice?
Facts with addends that differ by 1 are the best fit, such as 2 + 3, 5 + 6, and 8 + 9. These help children connect near doubles to doubles they already know.
Should my child memorize doubles before using these worksheets?
It helps if your child has some familiarity with doubles, but the worksheets also provide practice that strengthens those facts while introducing the plus 1 connection.
How can I help if my child keeps counting every number?
Ask your child to stop and find the double first. Have them say the steps aloud: “6 + 6 is 12, so 6 + 7 is 13.” Using counters can make the extra 1 easier to see.
Can these worksheets be used for math centers?
Yes. They are well suited for addition centers, partner practice, small-group instruction, and independent review after students have learned doubles facts.
Is this adding doubles plus 1 worksheets grade 1 free?
Yes. You can preview it for free and use the printable worksheet for home or classroom practice.
Can I download this adding doubles plus 1 worksheets grade 1 as a PDF?
Yes. Use the worksheet download option to save a printable PDF, or print the worksheet directly from the page.
Does this adding doubles plus 1 worksheets grade 1 include answers or an answer key?
When the activity has fixed answers, iBloom includes answer support so parents and teachers can check the completed worksheet.