Missing Addend – Sums of 18 – Swimming Underwater!

Like this swimmer with snorkel and mask, you can breathe easy! Just bubble up with joy as you find each missing addend. 12 problems.

CCSS  1.OA.6

Please go to this page to see all the missing addend worksheets for sums of 16-20.

missing addend - sums of 18 - swimming underwater

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Grade Levels: First Grade
Subjects: Addition // Math // First Grade Addition // Missing Addend Worksheets - Sums of 16-20