Question

-3 × +5 = - 15 (is it right) ​

Answer 1

Answer:

Given : (- 3) × (+ 5)

→ - 3 × 5

→ - 15

Yes, it is right.

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In Multiplication :

• (-) × (+) = (-)
• (+) × (-) = (-)
• (-) × (-) = (+)
• (+) × (+) = (+)

In Addition :

• (-) + (-) = (-)
• (+) + (+) = (+)
• (-) + (+) = Depends on the number. If the largest number has (-) sign, then the resultant will contain (-). If the smallest number has (-) sign and the largest number has (-) sign, then the answer will be positive.

In Division :

• (-)/(-) = (+)
• (+)/(+) = (+)
• (+)/(-) = (-)
• (-)/(+) = (-)

In Subtraction, whether the answer will be negative or not, it depends on the sign of the largest number.