Addition Facts to 20: Trashketball Review Questions
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Addition Facts to 20: Trashketball Review Questions
Trashketball and Around the World questions for addition facts within 20, Grade 1: 24 numbered questions to read aloud or project, such as 8 + 7. With an answer key, for any no-tech review game.
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Teach it first
Addition Facts to 20A teaching handout to hand out before this sheet: the rule, worked examples and common mistakes.- Skill
- Addition Worksheets
- Pages
- 2
- Last updated
- Time
- About 20 minutes
- Answer key
- Included
- Printing
- Black and white
- Related curriculum
-
Know the addition facts up to 20 without counting on fingers.
Reviewed by Mrs. Jennifer Mitchell, Teacher. How we check worksheets
How to use this sheet
- Time is not the goal yet. Let the child use any strategy, then ask which facts they knew without counting.
- Circle the facts that needed counting and do only those again the next day.
- For facts past 10, show how making a ten helps: 8 + 5 is 8 + 2 + 3, so 10 + 3.
Common mistakes
- Counting on from the smaller number, so 3 + 9 takes nine counts. Start with the bigger number and count on 3.
- Counting the first number again when counting on, so 6 + 3 becomes 8. Say 6 in your head, then count 7, 8, 9.
- Missing that 4 + 7 and 7 + 4 are the same fact. Point out the turned-around pairs on the sheet.
