Complete the following exercise:5⋅3= 5\cdot3= 5⋅3=
Let's remember the rule:
(+x)×(+x)=+x (+x)\times(+x)=+x (+x)×(+x)=+x
Therefore, the sign of the exercise result will be positive:
+5×+3=+15 +5\times+3=+15 +5×+3=+15
15