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adoni [48]
3 years ago
8

What operation makes the statement true; 18 __ (-20) =-2

Mathematics
2 answers:
Finger [1]3 years ago
6 0

Answer:

\huge\boxed{\text{+}}

Step-by-step explanation:

To make this statement true, we want to make it so that when -20 is "<em>something</em>'d" to 18, we get -2.

Let's try all the common operators first - add, subtract, multiply, divide.

Let's try add.

If we put a plus sign there:

18 + (-20) = -2

Adding a negative is the same as subtracting a positive.

18-20=-2

This is true! 18 - 20 is indeed -2. This means + is the right operator.

For fun, let me briefly go over what happens with all the other operators.

Subtract:

18 - (-20) = -2\\\\18+20=-2\\\\28 \neq -2

Multiply:

18 \cdot (-20) = -2\\\\-360 \neq -2

Divide:

18 \div (-20) = -2\\\\-0.9 \neq -2

Hope this helped!

8090 [49]3 years ago
5 0

Answer:

18-20=-2

Step-by-step explanation:

18-20=-2

18+(-20)=-2

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