2nd Grade Find the Unknown Worksheets
50 printable 2nd Grade math worksheets on Find the Unknown. Every sheet has a worked answer key — 50 in all. The first three worksheets are free to download; All Access opens the rest and every answer key.
In Grade 2: addition and subtraction families with two-digit numbers, with the missing number in any place.
Practice pages support a program; they are not the lesson. These sheets reinforce Building Number Sense Grade 2, the sequenced K–5 math series from Faith Thinkers. See every program →
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3 of 50 worksheets free · All Access opens the other 47 and all 50 answer keys
The free sheets download from this page as PDFs. Open to everyone.
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All 50 worksheets in this set
Find The Unknown Practice, numbered 1 to 50. The free ones open as PDFs.
Teaching Find the Unknown
What it is
Fact families with two-digit numbers and the blank in any place, eight equations to complete, and a story problem that asks for the starting number.
When a child is ready
Ready once two-digit addition and subtraction are worked on paper.
If they struggle
Draw the bond beside each equation and write in the two numbers that are known. The missing one is then plainly a sum or a difference.
Worksheet preview
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