Maryland Math K.AT.A.2
The Standard
Solve addition and subtraction problems in context (add to, take from, put together/take apart) within 10 and represent by using objects, drawings, and/or equations.
Maryland College and Career Ready Standards for Mathematics (2025) · SOLVE PROBLEMS INVOLVING ADDITION AND SUBTRACTION.
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students solve short stories about adding, taking away, combining, and splitting groups of up to 10. They show what happened with counters, drawings, or equations.
What Mastery Looks Like
- A student can show 8 counters, move 3 away, and say that 5 are left. They can also split 7 counters into groups of 4 and 3 and explain how the groups make 7.
Common Misconceptions
- Some students count the counters taken away instead of those left. Others count a counter twice when combining groups, or add when a story says items were removed.
How to Assess It
- Exit ticket: “Maya has 7 blocks. She gives 3 away. How many are left?” Ask students to show what happened with a drawing or counters and tell the answer.
Lesson moves
Ways to Teach It
Give pairs 9 counters and two cups. Ask them to put 4 counters in one cup, place the rest in the other, and draw both groups.
Read, “Five birds sit on a fence. Two fly away.” Ask, “What changed, and which birds do we count to find the answer?”
Play a matching game: pair a card showing 6 apples with 2 eaten with a drawing of 4 apples and 6 - 2 = 4.
At snack, put 3 crackers on a plate and add 2 more. Have students draw the plate and tell how many crackers there are.
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Printable K.AT.A.2 Worksheet
A ready-to-print activity worksheet aligned to K.AT.A.2, with an answer key for the teacher on its own page. No account needed.
PDF, US Letter, prints cleanly in black and white.
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Related Standards
- 2.AT.A.2
Use addition and/or subtraction within 100 to solve two-step problems in context involving any situation or position of an unknown by using objects, drawings, a...
- 2.AT.A.1
Use addition and subtraction within 100 to solve one-step problems in context involving an unknown in any situation or position by using objects, drawings, and ...
- K.AT.A.1
Represent addition and subtraction situations (presented with numerals or mathematical symbols) within 10 with objects, fingers, drawings, sounds (e.g., claps),...
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