Grade 4 Math quiz: Multi-digit multiplication

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What this quiz should check

Topic: Multiplying multi-digit whole numbers with area models and partial products (4.NBT.B.5). A good grade 4 quiz on this asks students to:

• Multiply a number up to four digits by a one-digit number using place value
• Multiply two two-digit numbers with an area model
• Write the partial products as an equation that matches the model
• Use an estimate to check whether a product is reasonable

Misconceptions worth a question

• Multiplying only the ones and tens digits and forgetting the cross products (36 x 52 is not 30 x 50 + 6 x 2)
• Treating the tens digit as a ones digit, so 20 x 4 becomes 8
• Lining up partial products by digit instead of adding their real values

Teacher tip: Grade 4 stops at a four-digit by one-digit and a two-digit by two-digit product, so tell the AI those limits and ask for an area-model sketch and a partial-products equation in every answer-key step.

Always check the AI's answer key before you give the quiz to students.

Teach it first

Plan the lesson on the same standard: objective, practice, differentiation and an exit ticket.

Grade 4 Multi-digit multiplication lesson plan prompt →