Maryland Math 3.AT.A.1
The Standard
Use multiplication and division within 100 to solve one-step problems in context involving equal groups, arrays, and area by using concrete materials, drawings, and/or equations.
Maryland College and Career Ready Standards for Mathematics (2025) · SOLVE PROBLEMS INVOLVING THE FOUR OPERATIONS AND IDENTIFY AND EXPLAIN PATTERNS IN ARITHMETIC.
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students solve one-step multiplication and division stories with totals up to 100. They use counters, drawings, or equations to show equal groups, arrays, or squares covering a rectangle.
What Mastery Looks Like
- A student can draw 4 rows of 6 dots, find 24, and write 4 × 6 = 24. Given 24 dots in 4 equal rows, they can find 6 dots per row and explain how they know.
Common Misconceptions
- Students may add the number of groups to the number in each group instead of multiplying. They may count only the squares along a rectangle's edges instead of all the squares covering it.
How to Assess It
- Exit ticket: A rectangular mat takes 24 square tiles to cover. If each row has 6 tiles, how many rows are needed? Draw an array and write an equation.
Lesson moves
Ways to Teach It
Give pairs 24 counters to arrange in equal rows two ways, then label each array with multiplication and division equations.
Ask, 'A box has 5 bags of 6 apples. Does 5 + 6 or 5 × 6 find the total?' Have students sketch and explain.
Play array match with cards showing 4 × 6, 24 ÷ 4, and a 4-by-6 dot array.
Cover a 4-by-6-inch photograph with 1-inch paper squares, then write an equation for the number of squares used.
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Printable 3.AT.A.1 Worksheet
A ready-to-print activity worksheet aligned to 3.AT.A.1, with an answer key for the teacher on its own page. No account needed.
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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 ...
- 7.NOS.A.2.e
Model and solve multistep contextual problems involving multiplication and division of rational numbers, using efficient and flexible strategies.
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