Multiplying by a Whole Number

2.1  x 2

• 4.2

• 42

• 420

0.09 x 7 =

• 63 tenths

• 6.3

• 0.063

• 63 hundredths

1.9 x 5

• 7.3

• 8.55

• 8.5

• 9.5

Mrs. Perpall bought 4 bags of candy for Halloween. Each bag cost $3.25. How much did she spend?

• $1.30

• $13

• $12.82

• None of these

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

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