Multiply: $2 \times(-21) \times 7$
A) -294
B) -273
C) 294
D) -7
Answer (1)
Multiply 2 and -21, which equals -42.
Multiply -42 by 7, which equals -294.
The final result is -294.
The correct option is A) -294. $\boxed{-294}
Explanation
Understanding the Problem We are asked to multiply three numbers: 2 , − 21 , and 7 . The problem is straightforward and requires us to perform the multiplication correctly.
First Multiplication First, let's multiply 2 and − 21 :
2 × ( − 21 ) = − 42
Second Multiplication Now, let's multiply the result, − 42 , by 7 :
− 42 × 7 = − 294
Final Answer So, the final result of the multiplication is − 294 . Comparing this with the given options, we see that option A is the correct answer.
Examples
In real life, multiplying numbers like this can help you calculate profits or losses. For example, if you earn $2 per item, lose $21 due to a defect, and sell 7 items, this calculation shows your total profit or loss. Understanding multiplication helps in managing finances and making informed decisions. This skill is crucial in various fields, from personal budgeting to business management.
