Find the Missing Operator in -5-5-5-5?5-15: Mathematical Expression Challenge

Question

Insert the compatible sign:

$-5-5-5-5?5-15$

00:10 First, pick the correct mathematical sign. Ready?

00:14 Next, find the point, negative five, on the number line.

00:19 Now, take three jumps to the left, toward the negative side.

00:24 Remember, each jump here equals five units.

00:28 Great! We've solved the left side. Let's tackle the right side.

00:33 Locate the point fifteen on the number line.

00:36 Take one jump to the left. That's moving toward the negative.

00:42 Fantastic! We've completed the right side.

00:47 As you move right on the number line, numbers increase.

00:51 And there you have it! That's how you solve this question.

Let's recall the laws:

$-(-x)=+x$

$+(-x)=-x$

We'll solve the left side first:

$-5-5=-10$

$-10-5=-15$

$-15-5=-20$

Now let's solve the right side:

$5-15=-10$

Since the right side is larger, the appropriate sign will be:

$-20 < -10$

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