Multiplying Decimal by Whole Numbers

Which equation matches the model?

• 2 x 0.3 = 0.6

• 3 x 0.2 = 0.6

• 2 x 3 = 0.6

• 3 x 2 = 6

What is the equation for the decimal multiplication model?

• 25 x 8 =200

• 0.25 x 8 = 0.20

• 0.8 x 25 = 2.0

• 8 x 0.25 = 2.00

What multiplication sentence does the model represent?

• 3 x .27 = 0.81

• 3 x 27 = 81

• .3 x .27 = .081

• 3 x .27 = 81

Leon wrote the product below without a decimal point. Where should he place the decimal point?

6.18 × 3 = 1854

• 1.854

• 185.4

• 0.1854

• 18.54

20.16 X 4.5 =

• too few places to the left

• too many places to the right

• 2

• 1

• one more place to the  left

• one more place to the right

• three more places to the left

• too many places to the left

• too few places to the right

• 3

0.09 x 7 =

• 63 tenths

• 0.063

• 0.63

• 63 hundredths

Which product makes the equation true?

375 x 0.001 =

• 0.375

• 3.75

• 37.5

• 375

• 3,750

Which product makes the equation true?

• 0.375

• 3.75

• 37.5

• 375

• 3,750

2.7 x 46

• 124.2

• 12.42

• 1.242

• 1,242