For the given expression, this means evaluating the expression inside the square brackets completely before adding the product.
7.68+3.18Ă· 12Following the order of operations, we need to start with the division. The calculations are easier if we multiply the divisor and the dividend by the same power of 10 so that the divisor is a whole number. In this case, we will multiply by 100.
3.18* 100 &=318
12* 100 &= 1200
This means that 3.18Ă· 12 is the same as 318Ă· 1200. Now we will find the quotient. We divide, multiply, subtract, and compare as many times as we need.
Since 318Ă· 1200=0.265, we know that 3.18Ă· 12=0.265. Let's substitute the result of the division in the given expression.
7.68+0.265
Now we can find the sum. To add decimals, we line up the decimal points so that place-value positions correspond. Annex a zero so that each place has a digit.
Now we add the decimals, just as we would with whole numbers, and place the decimal point in the answer.
The answer 7.945.
Alternative Solution
Using a Calculator
We can also evaluate this expression using a calculator. To do so, we type it as shown below.
