Decimals Review Multiply

Complete the steps in order to multiply 23.4 by 4.2.

1. First, you should: ​ (a)   .

2. Next, you should: ​ (b)   .

3. Last, you should: ​ (c)   .

• multiply 234 by 42

• count the digits behind the decimals

• place the decimal in the product

• drop the decimal down in the product

• count the digits in front of the decimals

• line up the decimals

Where does the decimal go in the answer: .11 x .3 = 33

• 0.033

• 0.33

• 3.3

How many decimal places should we have in the product for this multiplication problem: 0.73 x 2.52

• 2

• 3

• 4

• 5

45.1 x 7

• 31.57

• 315.7

• 3,157

• 3.157

0.5(0.03)

• 1.5

• 0.15

• 0.015

• 0.0015

Count the decimal places in the problem and place the decimal in the product accordingly.

8 x 4.8 = 384

• 3 8 4

• 3 . 8 4

• 3 8 . 4

  3.45 x 1.2

• 3.140

• 4.140

• 6.140

• 1.140

46.51 x 0.1

Mathematical Equivalence

ON

4(0.03)

• 12

• 1.2

• 0.12

• 0.012

4 x 0.03

• 12

• 0.12

• 120

• 0.012