Composing and Decomposing Numbers: STAAR Practice Insights

The video tutorial focuses on the third-grade math concept of composing and decomposing numbers, specifically addressing a problem from the 2019 STAR test. The instructor guides students through understanding the question, which involves identifying the answer choice that does not describe the number 7,140. The video explains how to express the number in expanded and word forms and analyzes each answer choice to determine which one is incorrect. The tutorial concludes by confirming the correct answer and providing a detailed explanation of why it is the right choice.

What grade level is the concept of composing and decomposing numbers discussed in the video?

• Second Grade

• Fourth Grade

• Third Grade

• Fifth Grade

Tags

CCSS.2.OA.A.1

What mathematical standard is discussed in the video?

• 3.3 A

• 3.1 A

• 3.2 A

• 3.4 A

What test item number is being used as an example in the video?

• Item 28

• Item 27

• Item 26

• Item 25

Tags

CCSS.1.OA.A.1

What is the primary goal of the problem discussed in the video?

• Identify the incorrect description of 7140

• Calculate the sum of 7140

• Identify the correct description of 7140

• Find the number 7140

Tags

CCSS.4.NBT.A.2

In the video, how is the number 7140 initially broken down?

• 7000 + 104

• 7100 + 40

• 7000 + 140

• 7000 + 100 + 40

Tags

CCSS.4.NBT.A.2

What is the correct expanded form of 7140 as explained in the video?

• 7000 + 104

• 7000 + 100 + 40

• 7000 + 140

• 7100 + 40

Tags

CCSS.4.NBT.A.2

Which option correctly represents the number 40 as described in the video?

• 14 tens

• 40 ones

• 4 tens

• 40 tens

Tags

CCSS.1.NBT.B.2B

CCSS.1.NBT.B.2C

According to the video, what does '40 tens' incorrectly calculate to?

• 1000

• 100

• 40

• 400

Tags

CCSS.2.NBT.A.1B

Which answer choice does NOT describe the number 7140, as concluded in the video?

• 7 thousands and 40 ones

• 7 thousands and 14 tens

• 7 thousands and 100 plus 40

• 7 thousands and 40 tens

Tags

CCSS.4.NBT.A.2

What does '14 tens' correctly calculate to, as verified in the video?

• 100

• 104

• 400

• 140

Tags

CCSS.2.NBT.A.1B