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1st Grade Math
1. 1.OA.A.1
1.1 Addition word problems up to 20
Addition Word Problems Up to 20
Turn everyday stories into number sentences and solve addition word problems with sums up to 20 using pictures, number lines, and simple steps.
What You'll Learn
Identify the numbers and the action in a story to decide that addition is needed.
Underline clue words like "in all," "altogether," and "total" to spot addition problems.
Draw a quick picture or bar model to represent the two groups being combined.
Write a number sentence such as \( 7 + 5 = 12 \) before solving.
Check that the answer is reasonable and stays within 20 for these problems.
Use a number line or counting on as a backup strategy when a sum is hard to picture.
What You'll Practice
1
Reading word problems about shopping, toys, and everyday items
2
Finding totals by adding two or more numbers up to 20
3
Solving problems with pictures and visual aids
Why This Matters
Word problems teach you to use math in real life, from counting money at a store to combining groups of objects. This skill helps you think through everyday situations and prepares you for more complex math problems ahead.
This Unit Includes
1 Video lesson
Practice exercises
Learning resources
Skills
Addition
Word Problems
Problem Solving
Number Sense
Real-World Math
OH Curriculum Aligned