Free printable practice
4 Digit Plus 1 Digit Practice Activities
Printable maths drills for adding a 1-digit number to a 4-digit number, with practice in place value, regrouping, and careful column addition.
Practice that builds confidence
What this skill builds
These printable activities help children practise adding a 1-digit number to a 4-digit number, such as 2,346 + 5 or 7,999 + 1. The focus is on place value, neat column work, and knowing when carrying is needed.
The worksheets include straightforward drill practice with mixed examples, so children meet both no-carry and carrying sums. They are useful for daily maths revision, homework, remedial support, or quick fluency practice after learning 4-digit addition.
Adding a 1-digit number to a 4-digit number looks simple, but it checks whether children really understand place value. They must add in the ones column first, then decide if the answer stays in the ones place or needs regrouping into tens. In sums like 4,213 + 6, only the ones change. In 4,218 + 6, the ones make 14, so 1 ten is carried.

How the practice progresses
Children move from sums that do not need carrying to examples where carrying affects the tens, hundreds, or even thousands place. A sum such as 3,999 + 5 is especially useful because it shows a chain of regrouping: ones become tens, tens become hundreds, and hundreds become thousands. This strengthens the connection between digits and their places.
Parent routine for home practice
Ask your child to read the first number aloud using place value language: “five thousand, two hundred and forty-eight.” Then have them point to the ones digit and add the 1-digit number. For 5,248 + 7, they can say, “8 + 7 = 15, write 5 and carry 1.” Let them complete a short set, check two answers together, and ask, “Where did the carry go?”

Classroom use for maths drills
Teachers can use these pages as warm-ups, quick checks after teaching addition, or practice in maths centres. They also work well for small groups who need more confidence with column addition. Mixed sums help teachers notice whether a child is only memorising steps or truly placing the carried digit in the correct column.

Common errors to watch for
Some children add the 1-digit number to the thousands digit instead of the ones digit. Others forget to carry, write both digits in one column, or carry into the wrong place. A helpful child-friendly strategy is: “Start at the ones, make a ten if you can, carry it next door.” Encourage neat spacing so every digit has its own column.
Free printable PDF download
Use this 4 digit plus 1 digit addition worksheet 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
These iBloom worksheets give focused practice on one exact addition skill, without mixing in unrelated operations. The repeated format builds fluency, while the variety of 4-digit numbers keeps children alert to different carrying patterns. This makes the pages useful for strengthening accuracy, speed, and confidence in maths drills.
Helpful answers
Frequently asked questions
What does 4 digit plus 1 digit addition mean?
It means adding a single-digit number, such as 3, 7, or 9, to a 4-digit number, such as 1,426 or 8,305. Children usually solve these sums by starting in the ones column.
Do these worksheets include carrying?
Yes. Practice can include both no-carry sums, such as 2,431 + 6, and carrying sums, such as 2,438 + 6, where the ones column needs regrouping.
Why is place value important in this skill?
Place value helps children understand that the 1-digit number is added to the ones place first. If the ones total is 10 or more, they must carry to the tens column.
What is a common mistake in 4 digit plus 1 digit sums?
A common mistake is adding the 1-digit number to the first digit of the 4-digit number instead of the ones digit. Neat column alignment helps prevent this.
How can I support my child at home?
Ask your child to point to the ones column, add aloud, and explain any carry. Checking a few sums together is more useful than only marking right or wrong answers.
Is this 4 digit plus 1 digit addition worksheet free?
Yes. You can preview it for free and use the printable worksheet for home or classroom practice.
Can I download this 4 digit plus 1 digit addition worksheet as a PDF?
Yes. Use the worksheet download option to save a printable PDF, or print the worksheet directly from the page.
Does this 4 digit plus 1 digit addition worksheet 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.