Questions: Multiply or Divide: 9(-5)= -8(-3)= -21/3=

Transcript text: Multiply or Divide: \[ 9(-5)= \] $\square$ \[ -8(-3)= \] $\square$ \[ \frac{-21}{3}= \] $\square$

Solution

Solution Steps

To solve these problems, we need to apply basic arithmetic operations. For multiplication, remember that multiplying two numbers with the same sign results in a positive product, while multiplying numbers with different signs results in a negative product. For division, dividing two numbers with the same sign results in a positive quotient, while dividing numbers with different signs results in a negative quotient.

Step 1: Multiply 9 and -5

To find the product of $9$ and $-5$, we multiply the two numbers. Since they have different signs, the result is negative: \[ 9 \times (-5) = -45 \]

Step 2: Multiply -8 and -3

To find the product of $-8$ and $-3$, we multiply the two numbers. Since they have the same sign, the result is positive: \[ -8 \times (-3) = 24 \]

Step 3: Divide -21 by 3

To find the quotient of $-21$ divided by $3$, we divide the two numbers. Since they have different signs, the result is negative: \[ \frac{-21}{3} = -7.0 \]

Final Answer

\[ \boxed{-45}, \quad \boxed{24}, \quad \boxed{-7.0} \]

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