The product of which expression contains four decimal places?

Question

5.3478 times 6.4214
6.4 times 9.1
521 times 3.82
14.2 times 0.784

Answer 1

To determine which expression has a product that contains four decimal places, we need to analyze each calculation and count the decimal places in the factors.

1. 5.3478 times 6.4214:

   • 5.3478 has 4 decimal places.
   • 6.4214 has 4 decimal places.
   • Total decimal places = 4 + 4 = 8 decimal places.

2. 6.4 times 9.1:

   • 6.4 has 1 decimal place.
   • 9.1 has 1 decimal place.
   • Total decimal places = 1 + 1 = 2 decimal places.

3. 521 times 3.82:

   • 521 has 0 decimal places.
   • 3.82 has 2 decimal places.
   • Total decimal places = 0 + 2 = 2 decimal places.

4. 14.2 times 0.784:

   • 14.2 has 1 decimal place.
   • 0.784 has 3 decimal places.
   • Total decimal places = 1 + 3 = 4 decimal places.

Based on the calculations, the expression with a product that contains four decimal places is:

14.2 times 0.784.