Facts with 0, Doubles, and Halves
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Facts with 0, Doubles, and Halves
Addition and subtraction worksheet for Grade 1: add and take away 0, see that the order of an addition does not change it but the order of a subtraction does, and find doubles and halves to 10. With an answer key.
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Make a new sheetSheet 20 of 894, each with its own answer key · Back to Sheet 1
- Skill
- Addition Worksheets
- Pages
- 1
- Last updated
- Time
- About 15 minutes
- Answer key
- Included
- Goes with
- Doubles Facts to 20
- 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.
