|Common Core Sheets||
◄ Previous Standard 1oa7
Understand the meaning of the equal sign, and determine if equations involving addition and subtraction are true or false.
Next Standard ► 1nbt1
Count to 120, starting at any number less than 120. In this range, read and write numerals and represent a number of objects with a written numeral.
|Operations and Algebraic Thinking|
|Work with addition and subtraction equations.|
|8. Determine the unknown whole number in an addition or subtraction equation relating to 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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|Solving Mixed Problems within 20 (+ -) 1oa8
Each worksheet has 20 problems solving addition and subtraction problems.Create New SheetOne atta TimeFlash Cards
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