Florida B.E.S.T. MA.4.AR.2.2
The Standard
Given a mathematical or real-world context, write an equation involving multiplication or division to determine the unknown whole number with the unknown in any position.
Florida B.E.S.T. Standards for Mathematics
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students turn multiplication and division situations into equations with a letter standing for the missing whole number. They place the letter where the missing quantity belongs, then solve.
What Mastery Looks Like
- Students write an equation that matches the quantities and relationships in a story. They solve for a missing factor, dividend, divisor, or product and check the answer in the original context.
Common Misconceptions
- Students often put the unknown only after the equal sign, even when the story makes another position more useful. They may reverse the dividend and divisor or choose multiplication whenever they see words like “each.”
How to Assess It
- Give this exit ticket: “Forty-eight markers are shared equally among some cups. Each cup gets 8 markers. Write an equation with a letter, then solve.”
Lesson moves
Ways to Teach It
Give pairs counters and cups, then have them model task cards and write equations with the unknown in different positions.
Ask students to compare 6 × n = 42, 42 ÷ 6 = n, and 42 ÷ n = 6 in writing.
Play a card match game using story cards, equation cards, and solution cards with missing factors, dividends, and divisors.
Have students plan equal snack bags from a set number of items, then write and solve an equation for bags or items per bag.
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Printable MA.4.AR.2.2 Worksheet
A ready-to-print activity worksheet aligned to MA.4.AR.2.2, with an answer key for the teacher on its own page. No account needed.
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Related Standards
- MA.1.AR.2.3
Determine the unknown whole number in an addition or subtraction equation, relating three whole numbers, with the unknown in any position.
- MA.3.AR.2.3
Determine the unknown whole number in a multiplication or division equation, relating three whole numbers, with the unknown in any position.
- MA.5.AR.2.4
Given a mathematical or real-world context, write an equation involving any of the four operations to determine the unknown whole number with the unknown in any...
- MA.2.AR.2.2
Determine the unknown whole number in an addition or subtraction equation, relating three or four whole numbers, with the unknown in any position.
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