A ) 52.9
B ) 54.9 ✅
C ) 55.9
D ) 56.9
Explanation:
Let's solve the expression step by step:
Use BODMASto decide which to solve first:
- Brackets/Parentheses
- Orders/Exponents
- Division and Multiplication
- Addition and Subtraction
- (+) + (+) = +
- (-) + (-) = -
- (+) + (-) = + (The absolute value of positive number is bigger)
- (+) + (-) = - (The absolute value of negative number is bigger)
- (+) × (+) = +; (+) ÷ (+) = +
- (-) × (-) = +; (-) ÷ (-) = +
- (+) × (-) = -; (+) ÷ (-) = -
- (-) × (+) = -; (-) ÷ (+) = -
Expression:
5+51+(-3)+7+(-5.1)--------
Step 1: Add the positive numbers:
5+51+7= 63
Step 2: Add the negative numbers:
−3+(−5.1)= -8.1
Step 3: Final addition:
63+(−8.1)=63−8.1=54.9
✅ Final Answer: 54.9