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Missing Number

Second graders solve open addition and subtraction sentences with one unknown number using numbers equal to or less than twenty. They identify number combinations that add up to their working number. They identify how many numbers are missing/are needed without counting on their fingers of stopping to mentally add on.

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Resource Details

Grade
2nd
Subjects
Arithmetic & Pre-Algebra
1 more...
Resource Type
Lesson Plans
Duration
1 hr
Instructional Strategy
Skills Practice