Question

Use your calculator to determine the answer to the following calculation: 1.0×10−154.2×10−7

Answer 1

1.0 × 10 − 154.2 × 10 − 7 = -1539

Further explanation

Order of Operations in Mathematics follow this following rule :

1. Parentheses
2. Exponents
3. Multiplication and Division
4. Addition and Subtraction

This rule is known as the PEMDAS method.

In working on a mathematical problem, we first calculate operation that is in parentheses, follow by exponentiation, then multiplication or division, and finally addition or subtraction.

Let us tackle the problem.

Let's write down the problem that is wanted to be solved:

$1.0 \times 10 - 154.2 \times 10 - 7$

$= (1.0 \times 10) - (154.2 \times 10) - 7$ → multiplication first

$= (10) - (1542) - 7$ → substraction from left to right

$= - 1532 - 7$

$= -1539$

Conclusion :

1.0 × 10 − 154.2 × 10 − 7 = -1539

This result could be verified by using scientific calculator.

Learn more

• Infinite Number of Solutions : brainly.com/question/5450548
• System of Equations : brainly.com/question/1995493
• System of Linear equations : brainly.com/question/3291576

Answer details

Grade: Middle School

Subject: Mathematics

Chapter: Order of Operations

Keywords: Linear , Equations , 1 , Variable , Line , Gradient , Point , Multiplication , Division , Exponent , PEMDAS , Calculator , Calculation , Result

Answer 2

The way to do this is by using PEMDAS. P (parentheses) E (exponents) M (multiplication) D (division) A (Addition) S (subtraction). The answer would be -1539