Virginia SOL 4.CE.2.g.iii
The Standard
a two-digit factor and a two-digit factor.*
Virginia Standards of Learning for Mathematics · The student will estimate, represent, solve, and justify solutions to single-step and multistep problems, including those in context, using multiplication with whole numbers, and single-step problems, including those in context, using division with whole numbers; and recall with automaticity the multiplication facts through 12 × 12 and the corresponding division facts.
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students estimate a product before calculating it. They use place value, properties, partial products, or the standard algorithm, then check whether the exact answer is reasonable.
What Mastery Looks Like
- Students produce a reasonable estimate and an accurate product. They can use place value or partial products, complete the standard algorithm correctly, and explain why the answer makes sense.
Common Misconceptions
- Students may forget that multiplying by a tens digit creates a value ten times greater. They may misalign partial products, regroup incorrectly, or accept an answer that conflicts with their estimate.
How to Assess It
- Give this exit ticket: Estimate and solve 34 × 27. Show the standard algorithm, then explain how your estimate supports your answer.
Lesson moves
Ways to Teach It
Build 23 × 14 with base ten blocks on a place value mat, then record the four partial products and combine them.
Ask students to compare rounding and compatible number estimates for 47 × 32, then write which estimate is more useful and why.
Play Product Match by pairing two factor cards with estimate cards and exact product cards, checking each match with the standard algorithm.
Use a seating plan with 24 rows of 18 chairs, and have students estimate and calculate the total number of seats.
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Printable 4.CE.2.g.iii Worksheet
A ready-to-print activity worksheet aligned to 4.CE.2.g.iii, with an answer key for the teacher on its own page. No account needed.
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Related Standards
- 4.CE.2.g.ii
a three-digit factor and a one-digit factor;* or
- 5.CE.3.b.ii
a three-digit factor and a one-digit factor (e.g., 0.156 × 4, 3.28 × 7, 8.09 × 0.2);* and
- 4.CE.2.g.i
a two-digit factor and a one-digit factor;*
- 5.CE.3.b.i
a two-digit factor and a one-digit factor (e.g., 2.3 × 4; 0.08 × 0.9; .16 × 5);*
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