Addition Worksheets — Math Worksheets for 1st Graders
Single-digit facts, missing addends, doubles, number bonds, and adding tens.
17 topics, each with up to 15 printable worksheets and answer keys. Start with Add Two Number and work down the list, or jump to the skill your child needs.
Add Two Numbers
Single-digit addition with sums up to 10 — the starting point for 1st grade addition.
Add a 1-Digit and a 2-Digit Number
Vertical column addition combining a two-digit and a one-digit number.
Single-Digit Addition — Missing Addends
Solve for the missing number in a single-digit addition sentence.
Add 3 Numbers
Add three single-digit numbers together.
Adding Doubles
Add a number to itself (e.g. 6 + 6), from 1 + 1 to 10 + 10, plus doubles of tens like 30 + 30.
Number Bonds — Sums with 8
Find the missing part of pairs that add up to 8.
Number Bonds — Sums with 9
Find the missing part of pairs that add up to 9.
Number Bonds — Sums with 10
Find the missing part of pairs that add up to 10 ("friends of 10").
Near Doubles
Add two numbers that are close together using a doubles fact as a shortcut.
Complete the Next Ten
Find how much to add to reach the next multiple of ten.
Missing Addends (Sum to 20)
Solve for the missing number in an addition sentence with sums up to 20.
Whole Tens — Missing Addend
Solve for the missing number when every value is a whole ten.
Add Whole Tens
Add two multiples of ten together (e.g. 30 + 40).
Adding Doubles Plus 1
Add two numbers that are exactly 1 apart, using a doubles fact as a shortcut.
Adding Doubles Plus 2
Add two numbers that are exactly 2 apart, using a doubles fact as a shortcut.
Adding Doubles Minus 1
Add two numbers that are exactly 1 apart, counting down from a doubles fact.
Add 1-Digit Numbers — Sums 10 to 18
Add two single-digit numbers whose total is 10 or more (up to 9 + 9 = 18) — the facts that cross ten.
More 1st grade math worksheets
Number Charts & Counting, Comparing Numbers, Base 10 Blocks, Place Value, Subtraction, Measurement, Telling Time, Geometry, Data & Graphing