Florida B.E.S.T. MA.4.NSO.2.2
The Standard
Multiply two whole numbers, up to three digits by up to two digits, with procedural reliability.
Florida B.E.S.T. Standards for Mathematics
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students find products using factors with hundreds, tens, and ones. They use partial products or the standard algorithm and record each place-value step accurately.
What Mastery Looks Like
- Students choose and carry out an accurate written method without skipped steps. They align place values, combine partial products correctly, and use an estimate to check reasonableness.
Common Misconceptions
- Students may forget the zero placeholder when multiplying by the tens digit. They may misalign partial products, regroup incorrectly, or multiply only matching place values.
How to Assess It
- Ask students to estimate, then solve 326 × 47 using a written method. Have them circle the partial product created by multiplying by 40.
Lesson moves
Ways to Teach It
Use place-value cards and an area-model mat to break 326 × 24 into four partial products, then combine them.
Compare two worked solutions for 243 × 36, identify the incorrect one, and write one sentence explaining the error.
Roll dice to make one three-digit factor and one two-digit factor, solve, then earn a point for an exact product.
Calculate the number of juice boxes in 24 cases holding 128 boxes each, then check the answer with an estimate.
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Printable MA.4.NSO.2.2 Worksheet
A ready-to-print activity worksheet aligned to MA.4.NSO.2.2, with an answer key for the teacher on its own page. No account needed.
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Related Standards
- MA.3.NSO.2.3
Multiply a one-digit whole number by a multiple of 10, up to 90, or a multiple of 100, up to 900, with procedural reliability.
- MA.4.NSO.2.3
Multiply two whole numbers, each up to two digits, including using a standard algorithm with procedural fluency.
- MA.5.NSO.2.1
Multiply multi-digit whole numbers including using a standard algorithm with procedural fluency.
- MA.5.NSO.2.5
Multiply and divide a multi-digit number with decimals to the tenths by one-tenth and one-hundredth with procedural reliability.
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