Students will
Learning objectives
- Add two single-digit numbers with sums up to 18.
- Count on from the larger number using a number line.
- Find the sums of doubles up to 9 + 9.
- Count two groups of pictures and write the total.
Single-Digit Addition Worksheet
Students add two single-digit numbers, with sums to 18, by counting pictures, using doubles and counting on along a 0 to 18 number line.
Format
- Color PDFThe full-color resource, ready to print or projectAvailable
- PrintablePrinter-friendly, uses less inkAvailable
- Fillable PDFStudents type answers right into the fileAvailable
- Google ClassroomAssign and share digitallyComing soon
Only the color PDF is ready for this resource so far. The other formats are on the way.
At a glance
- Grades
- 1–2
- Pages
- 3
- Type
- Worksheet
- Includes
- Answer key
Last updated
Page 1 of 3
Adding two single-digit numbers
Children add pairs of one-digit numbers, with a number line from 0 to 18 across the top of page 1 to start at the bigger number and hop forward. Picture problems and a row of doubles, such as 6 + 6 and 9 + 9, come first. Ten of the 15 facts on page 2 cross 10, like 9 + 4 and 8 + 6, which is where counting on gets slow and making ten helps. The key ends with one worked example of each strategy.
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From the creator
Teaching tips
1
For 2 + 9, a student who counts on from 2 makes nine hops. Point to the number line direction: start at 9 instead and hop just twice.
2
For facts like 9 + 4, use the key's make-ten move: take 1 from the 4 to turn the 9 into a ten, so 9 + 4 is the same as 10 + 3.
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Skills covered
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Differentiation
Meet every learner.
Ways to adjust the picture problems and facts for different students.
Support
Count and hop
- Do the three picture problems with real counters before students write the total.
- Have students put a finger on the number line and hop for every page 2 fact.
- Start page 2 with the five facts that stay under 10, such as 7 + 2 and 6 + 3.
On level
Teach as written
- Both pages, picture problems first.
- Students circle the page 2 facts they solved by making ten.
Extension
Beyond doubles
- Use each doubles answer to solve a near double, like 6 + 7 from 6 + 6.
- Write three other pairs of single-digit numbers that make 13.
Standards alignment.
Each one is checked against the official documents. Where the resource covers only part of a standard, the note says so.
Common Core Math · Grades 1–2
1.OA.C.6Add within 20 using strategies such as counting on, making ten and doubles
Students add one-digit numbers up to sums of 18 using counting on, doubles and make ten (the teacher tip shows 9 + 4 as 10 + 3). Subtraction is not covered.
1.OA.C.5Relate counting to addition, such as counting on
Students start at the bigger number on a number line and hop forward to add, and count two picture groups to find how many in all.
2.OA.B.2Fluently add within 20; know all sums of two one-digit numbers from memory
Students write 22 sums of two one-digit numbers for practice toward knowing them by heart. It is not a timed fluency check, and subtraction is not covered.
TEKS Math · Grade 1
1.3(D)Basic fact strategies within 20
Students add single-digit numbers with sums up to 18 using counting on, doubles and making ten, plus picture groups; subtraction facts are not included.
Good to know.
How is it different from the Math Addition Worksheet?
Every problem here adds two single-digit numbers. The Math Addition Worksheet starts with facts to 20 and moves on to two-digit sums with regrouping.
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