What is 0.3 times 0.5?

Answer 1

0.3 X 0.5 = 0.15

To multiply decimals ; multiply the numbers in the usual way ( 3 x 5 = 15) .

Then we note that each multiplying decimal ( multiplicand) is to ONE (1) decimal place. There being two multiplicands, each to one decimal place, then 1 + 1 = 2 . So the answer is to two(2) decimal places.

Another example

0.03 X 0.5 = 0.015 ( 2 dp + 1 dp = 3dp)

&

0.03 X 0.05 = 0.0015 ( 2 dp + 2dp = 4dp).

et seq.

Another way of doing this is to say 0.3 = 3/10 & 0.5 - 5/10

Now its a case of multiplying fractions.

3/10 x 5/10 = 15/100, which in decimal is 0.15 ( 2 x zeroes in 100 ; so 2dp).

Similarly

3/100 X 5/10 = 15/1000 = 0.015 (3 zeroes in 1000 ; so 3dp).

Answer 2

0.15

Answer 3

imagine half of 0.3 - which is 0,3 - 0,15 = 0,15

Answer 4

2