Grade 1 Addition Worksheet: Numbers 1-12 (100 Problems)

Updated: September 2026

Improve addition skills with this Grade 1 math worksheet featuring 100 single and double-digit problems using numbers from 0 to 12. Free and printable.

Grade 1 Addition Worksheet: Numbers 1-12 (100 Problems)
Grade 1
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About This Worksheet

This worksheet focuses on Addition for Grade 1 students. It contains 100 questions arranged in 5 columns and 20 rows, using numbers in the range 0 - 12. The worksheet uses a Printable Worksheet format. Students can enter their answers in the spaces provided on the worksheet.

Worksheet Details

  • Grade: Grade 1
  • Topic: Addition
  • Questions: 100
  • Rows: 20
  • Columns: 5
  • Format: Printable Worksheet
  • Layout: Grid
  • Number range: 0 - 12
  • Difficulty: Beginner
  • Answer key: Not visible in worksheet

What Students Will Practice

The worksheet provides practice with Addition using the exact problem structure shown in the uploaded worksheet. The main skills identified from the worksheet are:

  • Single-digit addition
  • Double-digit addition
  • Horizontal equation solving
  • Mental math for sums up to 24

Sample Problems and Solutions

Problem 1: 2 + 7

To solve this problem, start with the larger number (7) and count up 2 more: 8, 9. The sum of 2 and 7 is 9.

Answer: 9

Problem 2: 12 + 12

This is a double-digit addition problem. Adding the ones place (2 + 2) gives 4, and adding the tens place (1 + 1) gives 2, resulting in a total of 24.

Answer: 24

Problem 3: 9 + 9

This is a doubles fact. When you add 9 and 9 together, the result is 18.

Answer: 18

Worksheet Preview

Grade 1 Addition Worksheet: Numbers 1-12 (100 Problems) Preview
DAILY MATH

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