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Lesson Plans and Worksheets for Grade 3

Lesson Plans and Worksheets for all Grades

More Lessons for Grade 3

Common Core For Grade 3

Examples, videos, and solutions to help Grade 3 students learn how to find related multiplication facts by adding and subtracting equal groups in array models. Associative Property.

Common Core Standards: 3.OA.1, 3.OA.5, 3.OA.3, 3.OA.4

### New York State Common Core Math Grade 3, Module 1, Lesson 9

Download worksheets for Grade 3, Module 1, Lesson 9

### NYS Math Grade 3, Module 1, Lesson 9 Concept Development

Problem 1: Add 2 known smaller facts to solve an unknown larger fact.

Problem 2: Subtract 2 known smaller facts to solve an unknown larger fact.

Word Problem:

Leah puts 5 rows of 4 on the table. Draw an array to show this.

She adds two more rows. Show Leah's new stickers on the array. Write a multiplication sentence to show the number of stickers added.

How do we add the totals to find Leah's total number of stickers altogether?

### NYS Math Module 1 Grade 4 Lesson 9 Homework

1. Dan organizes his star stickers into 3 rows of 4. Irene adds 2 more rows of stickers. Complete the
number sentences to describe the total number of stickers in the array.

a. (4 + 4 + 4) + (4 + 4) = ___________

b. 3 fours + ______ fours = ___________ fours

c. ________ × 5 = ____________ 2. 7 × 2 = ______

12 + 2 = _______

______ × 2 = 14

3. 9 × 3 = ______

30 – ____= 27

____ × 3 = 27

4. Franklin collects stickers. He organizes his stickers in 5 rows of 4 on his table.

Draw an array that represents Franklin’s stickers using an x to show each sticker.

5 × 4 = ______

5. Franklin adds 2 more rows. Use circles to show his new stickers on the array in part 3a.

a. Write and solve a multiplication sentence to represent the circles you added to the array.

____ × 4 = ____

b. Complete the addition sentence to show how you added the totals of 2 multiplication facts to find Franklin’s total number of stickers.

____ + ____ = 28

c. Complete the unknown to show Franklin’s total number of stickers.

____ × 4 = 28

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 3

Lesson Plans and Worksheets for all Grades

More Lessons for Grade 3

Common Core For Grade 3

Examples, videos, and solutions to help Grade 3 students learn how to find related multiplication facts by adding and subtracting equal groups in array models. Associative Property.

Common Core Standards: 3.OA.1, 3.OA.5, 3.OA.3, 3.OA.4

Problem 2: Subtract 2 known smaller facts to solve an unknown larger fact.

Word Problem:

Leah puts 5 rows of 4 on the table. Draw an array to show this.

She adds two more rows. Show Leah's new stickers on the array. Write a multiplication sentence to show the number of stickers added.

How do we add the totals to find Leah's total number of stickers altogether?

a. (4 + 4 + 4) + (4 + 4) = ___________

b. 3 fours + ______ fours = ___________ fours

c. ________ × 5 = ____________ 2. 7 × 2 = ______

12 + 2 = _______

______ × 2 = 14

3. 9 × 3 = ______

30 – ____= 27

____ × 3 = 27

4. Franklin collects stickers. He organizes his stickers in 5 rows of 4 on his table.

Draw an array that represents Franklin’s stickers using an x to show each sticker.

5 × 4 = ______

5. Franklin adds 2 more rows. Use circles to show his new stickers on the array in part 3a.

a. Write and solve a multiplication sentence to represent the circles you added to the array.

____ × 4 = ____

b. Complete the addition sentence to show how you added the totals of 2 multiplication facts to find Franklin’s total number of stickers.

____ + ____ = 28

c. Complete the unknown to show Franklin’s total number of stickers.

____ × 4 = 28

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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