Unbenanntes Videoquiz

How can a subtraction problem involving negative numbers be converted into an addition problem?

• Change the subtraction sign to an addition sign and keep the second number the same.

• Change the subtraction sign to an addition sign and change the sign of the second number.

• Change the subtraction sign to an addition sign and change the sign of the first number.

• Keep the subtraction sign and change the sign of the second number.

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What is the result of -2 - (+4)?

• 2

• -2

• -6

• 6

Calculate -5 - (-3).

• -8

• 8

• -2

• 2

What is the solution to 3 - (-12)?

• -9

• 9

• -15

• 15