Exploring Multiplying Decimals in Grade 6

What is the result of multiplying 24 by 0.1?

• 240

• 2.4

• 24

• 0.24

What does multiplying by 0.1 effectively do to a number?

• Subtracts 10

• Divides it by 10

• Multiplies it by 10

• Adds 10

How is 0.04 times 0.07 calculated using rearrangement of fractions?

• 2.8

• 0.028

• 0.28

• 0.0028

What is the product of 0.04 and 0.07 when decimals are converted to whole numbers?

• 2.8

• 0.28

• 28

• 0.0028

What is the area of a rectangle with sides 0.04 unit and 0.07 unit using an area model?

• 2.8 square units

• 0.0028 square units

• 0.028 square units

• 0.28 square units

How is the area of a rectangle with sides 3.4 units and 1.2 units calculated using partial products?

• 4.08 square units

• 40.8 square units

• 0.408 square units

• 408 square units

What is the area of the smaller rectangle within the 3.4 by 1.2 rectangle, with sides 0.4 unit and 0.2 unit?

• 8 square units

• 0.8 square units

• 0.08 square units

• 0.008 square units

What is the combined area of regions A and B in the decomposed rectangle?

• 0.068 square units

• 6.8 square units

• 68 square units

• 0.68 square units

What is the total area of the original rectangle after summing all partial products?

• 40.8 square units

• 408 square units

• 0.408 square units

• 4.08 square units

How do we convert the product of whole numbers back to the original decimal product?

• Add the conversion factor

• Divide by the conversion factor

• Subtract the conversion factor

• Multiply by the conversion factor