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Home › Worksheets › Single Digit Addition (Horizontal)

Single Digit Addition (Horizontal)

30 addition problems on two pages, written across the line like 6 + 5 = ___. Every number is a single digit from 0 to 9, so the sums go up to 18. It's for kindergarten and 1st grade students learning to read and solve addition sentences.

Worksheet Details

Master single-digit addition (0-9) with this horizontal format printable math worksheet. Free PDF download with answers.

Category: Addition
Difficulty: Easy

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Reading an addition sentence

Written across the page, a problem reads like a sentence: six plus five equals what? It helps to read the first few out loud. Now and then, say "is the same as" for the equals sign, so students don't learn it as "the answer goes here." That idea causes trouble later with problems like 11 = 6 + 5.

Counting on is the usual strategy at this stage. Start at the bigger number and count up by the smaller one, so 3 + 8 starts at 8 and counts three more. The problems with a 0, like 8 + 0, are a good time to show that adding zero leaves a number the same.

For the same kind of facts stacked in columns, use Single Digit Addition (Vertical).

Frequently Asked Questions

Is horizontal or vertical addition better for beginners?

Neither is better. Horizontal matches how addition sentences are written, and vertical sets up adding by column later. It's worth practicing both.

What grade is single digit addition?

Kindergarten students add within 10, and 1st graders add within 20. This sheet fits the end of kindergarten and most of 1st grade.

How do I help a child who counts every number from 1?

Teach counting on. Hold the bigger number in your head and count up the smaller one on your fingers. It's a big step, and it's the bridge to knowing the facts without counting.

Related Worksheets

  • Single Digit Addition (Vertical)
  • Double Digit Addition (No Regrouping)
  • Triple Digit Addition (Vertical)
  • Four Digit Addition Challenge
  • Double Digit Addition with Regrouping

Keep Going with This Skill

  • Practice it live: Addition Facts to 20, Two-Digit Addition Practice, Three-Digit Addition Practice
  • Read the guide: Regrouping: Carrying and Borrowing
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