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Lesson Plans and Worksheets for Grade 4

Lesson Plans and Worksheets for all Grades

More Lessons for Grade 4

Common Core For Grade 4

Videos, examples, homework, and solutions to help Grade 4 students learn how to use place value disks to represent two-digit by one-digit multiplication.

Common Core Standards: 4.NBT.5, 4.OA.1, 4.OA.2, 4.NBT.1

### New York State Common Core Math Grade 4, Module 3, Lesson 7

Grade 4, Module 3, Lesson 7 Worksheets (pdf)

**NYS Math Module 3 Grade 4 Lesson 7 Concept Development
**

Problem 1: Represent 2 × 23 with disks, writing a matching equation and recording the partial products vertically.

Problem 2: Model and solve 4 × 54.

**NYS Math Module 3 Grade 4 Lesson 7 Homework
**

1. Represent the following expressions with disks, regrouping as necessary, writing a matching expression, and recording the partial products vertically.

a. 3 × 24

b. 3 × 42

c. 4 × 34

2. Represent the following expressions with disks, regrouping as necessary. To the right, record the partial products vertically.

a. 4 × 27

b. 5 × 42

3. Cindy says she found a shortcut for doing multiplication problems. When she multiplies 3 × 24, she says, “3 × 4 is 12 ones, or 1 ten and 2 ones. Then there’s just 2 tens left in 24, so add it up and you get 3 tens and 2 ones.” Do you think Cindy’s shortcut works? Explain your thinking in words and justify your response using a model or partial products.

You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.

Lesson Plans and Worksheets for Grade 4

Lesson Plans and Worksheets for all Grades

More Lessons for Grade 4

Common Core For Grade 4

Videos, examples, homework, and solutions to help Grade 4 students learn how to use place value disks to represent two-digit by one-digit multiplication.

Common Core Standards: 4.NBT.5, 4.OA.1, 4.OA.2, 4.NBT.1

Problem 1: Represent 2 × 23 with disks, writing a matching equation and recording the partial products vertically.

Problem 2: Model and solve 4 × 54.

1. Represent the following expressions with disks, regrouping as necessary, writing a matching expression, and recording the partial products vertically.

a. 3 × 24

b. 3 × 42

c. 4 × 34

2. Represent the following expressions with disks, regrouping as necessary. To the right, record the partial products vertically.

a. 4 × 27

b. 5 × 42

3. Cindy says she found a shortcut for doing multiplication problems. When she multiplies 3 × 24, she says, “3 × 4 is 12 ones, or 1 ten and 2 ones. Then there’s just 2 tens left in 24, so add it up and you get 3 tens and 2 ones.” Do you think Cindy’s shortcut works? Explain your thinking in words and justify your response using a model or partial products.

Rotate to landscape screen format on a mobile phone or small tablet to use the **Mathway** widget, a free math problem solver that **answers your questions with step-by-step explanations**.

You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.

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