Florida B.E.S.T. MA.5.NSO.2.1
The Standard
Multiply multi-digit whole numbers including using a standard algorithm with procedural fluency.
Florida B.E.S.T. Standards for Mathematics
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students find products of whole numbers with several digits. They use place value and partial products to complete the standard algorithm with correct alignment and regrouping.
What Mastery Looks Like
- Students solve unfamiliar problems accurately using an organized standard algorithm. They align partial products, regroup correctly, and handle zeros without losing place value. They also use estimation to check their answers.
Common Misconceptions
- Students may place the second partial product in the ones column instead of shifting it by place value. They may forget regrouped values or treat zeros inside a factor as if they have no value. Some add partial products incorrectly after multiplying correctly.
How to Assess It
- Exit ticket: Solve 3,406 × 27 using the standard algorithm. Estimate first, then use the estimate to judge whether your product is reasonable.
Lesson moves
Ways to Teach It
Build 23 × 14 with base-ten blocks on place-value mats, then connect each region to the partial products in the written algorithm.
Display two solutions to 2,315 × 46, including one with a misplaced second row, and ask students to explain which is correct.
Play Product Match by pairing multiplication cards with answer cards, then checking each match with the standard algorithm.
Find the total seats in 36 sections with 248 seats each, then explain whether the result is reasonable.
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Printable MA.5.NSO.2.1 Worksheet
A ready-to-print activity worksheet aligned to MA.5.NSO.2.1, with an answer key for the teacher on its own page. No account needed.
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Related Standards
- MA.4.NSO.2.3
Multiply two whole numbers, each up to two digits, including using a standard algorithm with procedural fluency.
- MA.3.NSO.2.1
Add and subtract multi-digit whole numbers including using a standard algorithm with procedural fluency.
- MA.5.NSO.2.3
Add and subtract multi-digit numbers with decimals to the thousandths, including using a standard algorithm with procedural fluency.
- MA.6.NSO.2.1
Multiply and divide positive multi-digit numbers with decimals to the thousandths, including using a standard algorithm with procedural fluency.
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