Multiplication and Division of Signed Mumbers: Complete the missing numbers

-73:?<0

Let's pay attention to the exercise on the left side of the page in terms of the plus and minus signs.

The exercise looks like this:

$-:\text{?}=$

In other words, we need to divide by a number that will give us a result smaller than 0, therefore:

$-:+=-$

- < 0

So the answer is $+4$

$+4$

-45:?<0

Let's pay attention to the exercise on the left side of the page in terms of the plus and minus signs.

The exercise looks like this:

$-:\text{?}=$

Our result needs to be less than zero, and therefore we need a positive number in order to get a negative result.

Therefore:

$-:+=-$

- < 0

So the answer is $+78$

$+78$

-12:-\frac{1}{4}:?>0

$+35$

-2:-1947:?>0

$+3.3$

-12:-8:?>0

$+\frac{1}{90}$

?:+39:+409<0

$-98$

-53:?:+3>0

$-\frac{1}{4}$

+2:?:+12<0

$-40$