*Rewrite the problems vertically in your notebook to find the product. Remove the decimal point and multiply the numbers. Then don’t forget to scoop the decimal point back into the answer.

Question

4.6 x 21

Answer 1

To find the product of 4.6 and 21, follow these steps:

Step 1: Rewrite without the decimal point.

• Rewrite 4.6 as 46 (remove the decimal point).
• The problem becomes 46 x 21.

Step 2: Multiply the numbers.

      46
   x  21
   _______
     46        (46 x 1)
+  92          (46 x 2, shift one place to the left)
   _______
    966

Step 3: Count the decimal places.

• There is 1 decimal place in 4.6.

Step 4: Place the decimal back into the answer.

• The answer is 96.6.

So, 4.6 x 21 = 96.6.