Assessment Practice MA.3.NSO.1.2

1. Which number is 61 hundreds + 158 ones?

• 1. 6,158

• 1. 6,168

• 1. 6,258

• 1. 7,680

Answer explanation

Understanding Composition and Decomposition of Four-Digit Numbers

Composition is combining parts to make a whole number, while decomposition is breaking a number into its parts.

Example: 4,236

• Compose:

  • Objects: 4 sets of 1,000, 2 sets of 100, 3 sets of 10, 6 units.

  • Equation: 4,236=4×1,000+2×100+3×10+6

• Decompose:

  • Objects: 4,000 + 200 + 30 + 6.

  • Equation: 4,236=4,000+200+30+6

Tips:

• Visualize with objects or drawings.

• Practice with various numbers.

• Use place value charts.

• Write as a sum when unsure.

Tags

MA.3.NSO.1.2

Choose a number in each box that makes the statement true.

3,209 = ?​

​ (a)   hundreds + 10 tens + ​ (b)  

• 31
• 9
• 32
• 33
• 8
• 10
• 0

Answer explanation

Understanding Composition and Decomposition of Four-Digit Numbers

Composition is combining parts to make a whole number, while decomposition is breaking a number into its parts.

Example: 4,236

• Compose:

  • Objects: 4 sets of 1,000, 2 sets of 100, 3 sets of 10, 6 units.

  • Equation: 4,236=4×1,000+2×100+3×10+6

• Decompose:

  • Objects: 4,000 + 200 + 30 + 6.

  • Equation: 4,236=4,000+200+30+6

Tips:

• Visualize with objects or drawings.

• Practice with various numbers.

• Use place value charts.

• Write as a sum when unsure.

Tags

MA.3.NSO.1.2

Write a number that can be expressed as 8 thousands + 5 hundreds + 2 tens + 9 ones.8529

Mathematical Equivalence

ON

Answer explanation

Understanding Composition and Decomposition of Four-Digit Numbers

Composition is combining parts to make a whole number, while decomposition is breaking a number into its parts.

Example: 4,236

• Compose:

  • Objects: 4 sets of 1,000, 2 sets of 100, 3 sets of 10, 6 units.

  • Equation: 4,236=4×1,000+2×100+3×10+6

• Decompose:

  • Objects: 4,000 + 200 + 30 + 6.

  • Equation: 4,236=4,000+200+30+6

Tips:

• Visualize with objects or drawings.

• Practice with various numbers.

• Use place value charts.

• Write as a sum when unsure.

Tags

MA.3.NSO.1.2

Write a number that can be expressed as 5 thousands + 27 hundreds + 8 tens + 15 ones.

Mathematical Equivalence

ON

Answer explanation

Understanding Composition and Decomposition of Four-Digit Numbers

Composition is combining parts to make a whole number, while decomposition is breaking a number into its parts.

Example: 4,236

• Compose:

  • Objects: 4 sets of 1,000, 2 sets of 100, 3 sets of 10, 6 units.

  • Equation: 4,236=4×1,000+2×100+3×10+6

• Decompose:

  • Objects: 4,000 + 200 + 30 + 6.

  • Equation: 4,236=4,000+200+30+6

Tips:

• Visualize with objects or drawings.

• Practice with various numbers.

• Use place value charts.

• Write as a sum when unsure.

Tags

CCSS.4.NBT.A.2

1. Select all the numbers that have 2 hundreds.

• 1. 1,258

• 1. 1,325

• 1. 2,328

• 1. 2,481

• 1. 3,247

Answer explanation

Understanding Composition and Decomposition of Four-Digit Numbers

Composition is combining parts to make a whole number, while decomposition is breaking a number into its parts.

Example: 4,236

• Compose:

  • Objects: 4 sets of 1,000, 2 sets of 100, 3 sets of 10, 6 units.

  • Equation: 4,236=4×1,000+2×100+3×10+6

• Decompose:

  • Objects: 4,000 + 200 + 30 + 6.

  • Equation: 4,236=4,000+200+30+6

Tips:

• Visualize with objects or drawings.

• Practice with various numbers.

• Use place value charts.

• Write as a sum when unsure.

Tags

MA.3.NSO.1.2

1. Select all the expressions that are equivalent to 3,256.

• 1. 2 thousands + 12 hundreds + 3 tens + 26 ones

• 1. 2 thousands + 12 hundreds + 5 tens + 6 ones

• 1. 2 thousands + 22 hundreds + 4 tens + 6 ones

• 1. 3 thousands + 2 hundreds + 5 tens + 16 ones

• 1. 3 thousands + 2 hundreds + 5 tens + 6 ones

Answer explanation

Understanding Composition and Decomposition of Four-Digit Numbers

Composition is combining parts to make a whole number, while decomposition is breaking a number into its parts.

Example: 4,236

• Compose:

  • Objects: 4 sets of 1,000, 2 sets of 100, 3 sets of 10, 6 units.

  • Equation: 4,236=4×1,000+2×100+3×10+6

• Decompose:

  • Objects: 4,000 + 200 + 30 + 6.

  • Equation: 4,236=4,000+200+30+6

Tips:

• Visualize with objects or drawings.

• Practice with various numbers.

• Use place value charts.

• Write as a sum when unsure.

Tags

MA.3.NSO.1.2

1. Which number is represented by the base-ten blocks?
   

• 1. 1,836

• 1. 2,336

• 1. 1,451

• 1. 1,831

Answer explanation

Understanding Composition and Decomposition of Four-Digit Numbers

Composition is combining parts to make a whole number, while decomposition is breaking a number into its parts.

Example: 4,236

• Compose:

  • Objects: 4 sets of 1,000, 2 sets of 100, 3 sets of 10, 6 units.

  • Equation: 4,236=4×1,000+2×100+3×10+6

• Decompose:

  • Objects: 4,000 + 200 + 30 + 6.

  • Equation: 4,236=4,000+200+30+6

Tips:

• Visualize with objects or drawings.

• Practice with various numbers.

• Use place value charts.

• Write as a sum when unsure.

Tags

MA.3.NSO.1.2

1. Select all the expressions that are equivalent to 2,574.

• 1. 2 thousands + 4 hundreds + 17 tens + 4 ones

• 1. 2 thousands + 5 hundreds + 7 tens + 4 ones

• 1. 2 thousands + 4 hundreds + 74 ones

• 1. 25 hundreds + 60 tens + 4 ones

• 1. 25 hundreds + 74 ones

Answer explanation

Understanding Composition and Decomposition of Four-Digit Numbers

Composition is combining parts to make a whole number, while decomposition is breaking a number into its parts.

Example: 4,236

• Compose:

  • Objects: 4 sets of 1,000, 2 sets of 100, 3 sets of 10, 6 units.

  • Equation: 4,236=4×1,000+2×100+3×10+6

• Decompose:

  • Objects: 4,000 + 200 + 30 + 6.

  • Equation: 4,236=4,000+200+30+6

Tips:

• Visualize with objects or drawings.

• Practice with various numbers.

• Use place value charts.

• Write as a sum when unsure.

Tags

MA.3.NSO.1.2

Select the set of base-ten blocks that represents 4,081.

Answer explanation

Understanding Composition and Decomposition of Four-Digit Numbers

Composition is combining parts to make a whole number, while decomposition is breaking a number into its parts.

Example: 4,236

• Compose:

  • Objects: 4 sets of 1,000, 2 sets of 100, 3 sets of 10, 6 units.

  • Equation: 4,236=4×1,000+2×100+3×10+6

• Decompose:

  • Objects: 4,000 + 200 + 30 + 6.

  • Equation: 4,236=4,000+200+30+6

Tips:

• Visualize with objects or drawings.

• Practice with various numbers.

• Use place value charts.

• Write as a sum when unsure.

Tags

MA.3.NSO.1.2