Practice Makes Perfect
5.9k Followers
Grade Levels
1st - 3rd
Subjects
Resource Type
Standards
CCSS1.OA.B.4
CCSS1.OA.C.6
CCSS1.OA.D.7
CCSS1.OA.D.8
Formats Included
- PDF
Pages
3 pages
Practice Makes Perfect
5.9k Followers
Description
These worksheets are a fun addition to correlate with your Columbus Day activities. ✅Differentiated with two worksheets,
►one is find the missing number
►one is strictly sums and differences
►Both correspond to the coloring sheet.
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Total Pages
3 pages
Answer Key
N/A
Teaching Duration
N/A
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Standards
to see state-specific standards (only available in the US).
CCSS1.OA.B.4
Understand subtraction as an unknown-addend problem. For example, subtract 10 – 8 by finding the number that makes 10 when added to 8.
CCSS1.OA.C.6
Add and subtract within 20, demonstrating fluency for addition and subtraction within 10. Use strategies such as counting on; making ten (e.g., 8 + 6 = 8 + 2 + 4 = 10 + 4 = 14); decomposing a number leading to a ten (e.g., 13 - 4 = 13 - 3 - 1 = 10 - 1 = 9); using the relationship between addition and subtraction (e.g., knowing that 8 + 4 = 12, one knows 12 - 8 = 4); and creating equivalent but easier or known sums (e.g., adding 6 + 7 by creating the known equivalent 6 + 6 + 1 = 12 + 1 = 13).
CCSS1.OA.D.7
Understand the meaning of the equal sign, and determine if equations involving addition and subtraction are true or false. For example, which of the following equations are true and which are false? 6 = 6, 7 = 8 - 1, 5 + 2 = 2 + 5, 4 + 1 = 5 + 2.
CCSS1.OA.D.8
Determine the unknown whole number in an addition or subtraction equation relating three whole numbers. For example, determine the unknown number that makes the equation true in each of the equations 8 + ? = 11, 5 = ▯ - 3, 6 + 6 = ▯.
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