Answer:
.04
Explanation:
.05x.8=.04
since 5 x 8 is 40 and between .05 and .8 there are three digits behind the decimal sign you move the decimal sign three spaces to the left in the solution to 5x8
5x8=40
40 → 4.0 (one space) → .40 (two spaces) → .040 (three spaces)
.04 and .040 are equal to each other