Grade 1Mathmedium
Grade 1 Addition Practice - Medium Level
This worksheet focuses on addition problems with sums up to 18, including double-digit addition without regrouping and word problems.
Download Free PDF
No signup required — instant download
grade1additionmediummathelementaryhomeschoolword-problemsdouble-digit
Worksheet Preview
What Your Child Will Learn
- Solve addition problems with sums from 10 to 18 using mental math strategies
- Add two-digit numbers to single-digit numbers without regrouping (e.g., 12 + 5 = 17)
- Apply addition skills to solve simple word problems involving joining or combining quantities
- Demonstrate understanding of the commutative property by recognizing that 7 + 9 equals 9 + 7
How to Use This Worksheet
- Step 1: Start with the basic addition facts (problems 1-6), encouraging your child to use mental math strategies rather than counting fingers
- Step 2: Move to the two-digit addition problems (problems 7-9), having your child identify the tens and ones before adding
- Step 3: Read the word problems aloud together (problems 10-12), helping your child identify what information is given and what they need to find
- Step 4: Have your child show their work by drawing pictures or writing number sentences for each word problem
- Step 5: Review incorrect answers by asking your child to explain their thinking, then guide them to the correct strategy
Tips for Parents & Teachers
Watch for students who count on their fingers for every problem - encourage them to memorize doubles facts (6+6, 7+7) first, then use 'near doubles' (6+7 = 6+6+1) to build fluency with sums to 18
When students struggle with two-digit plus single-digit problems like 14 + 3, have them use base-ten blocks or draw quick pictures showing 1 ten and 4 ones, then add 3 more ones
For word problems, teach students to circle the numbers and underline key words like 'altogether,' 'in all,' or 'total' that signal addition, then have them draw a picture before writing the number sentence
Frequently Asked Questions
My child still uses fingers for addition problems with sums to 18. Is this okay?
While finger counting shows understanding, encourage your child to memorize doubles facts (5+5, 6+6, 7+7, 8+8, 9+9) first. Then teach 'near doubles' - if they know 8+8=16, they can figure out 8+9 by adding one more. This builds toward mental math fluency.
How can I help my child with two-digit addition when they haven't learned regrouping yet?
Focus on problems where the ones digits add to 9 or less (like 12+6 or 15+3). Use base-ten blocks or draw quick sketches showing tens and ones. Emphasize that they're adding to the ones place while the tens place stays the same.
My first grader struggles with word problems but can do the math. What should I focus on?
Practice identifying key information by having them circle numbers and underline signal words like 'altogether' or 'in all.' Encourage drawing pictures before writing equations. Start with simple scenarios they can relate to, like toys or snacks.
What mental math strategies work best for sums between 10-18?
Teach 'make ten' first (7+5 = 7+3+2 = 10+2 = 12), then doubles and near doubles (6+7 = 6+6+1). Also practice counting on from the larger number (for 4+9, start at 9 and count up 4). These strategies reduce reliance on finger counting.
Should my child memorize all addition facts to 18, or focus on understanding?
Both are important! Start with understanding using concrete objects and pictures, then work toward memorization of key facts like doubles. By the end of first grade, children should know addition facts to 20 from memory, but understanding the 'why' behind the math is equally crucial.
Related Worksheets
More Math Worksheets
Related Articles
Second Grade Math Skills: What Your Child Should Know (Parent Guide)
A complete guide to second grade math milestones. Learn what math skills your child should master, how to practice at home, and get free printable worksheets for every key topic.
First Grade Math Word Problems: Strategies, Tips, and Free Worksheets
Help your first grader master math word problems with proven strategies, step-by-step approaches, and free printable worksheets. A complete parent's guide to building problem-solving skills.
First Grade Addition and Subtraction: Proven Strategies to Build Math Confidence
Master effective strategies to teach addition and subtraction to first graders — from counting on and number lines to hands-on activities and free printable worksheets.
Get Free Worksheets in Your Inbox
Subscribe for new worksheets and homeschool tips. No spam, unsubscribe anytime.