you should use addition in a problem involving fractions if you see key words that mean to add, for example sum increase, altogether, etc
You should be familiar with long division involving decimals
When performing calculations involving addition, the result should be rounded to the same decimal place as the least precise number being added. For multiplication and division, the result should have the same number of significant figures as the least precise number in the calculation.
When performing calculations involving significant figures in both multiplication and addition operations, ensure accuracy by following these steps: For multiplication and division, the result should have the same number of significant figures as the measurement with the fewest significant figures. For addition and subtraction, the result should be rounded to the same decimal place as the measurement with the fewest decimal places. By applying these rules, you can maintain the accuracy of your calculations involving significant figures.
It depends on the exact nature of the problem.
21
It means you should invent a short problem (story) where an addition has to be made.
The statement is false.
When performing addition and subtraction operations with measurements of different significant figures, the result should be rounded to the same number of decimal places as the measurement with the fewest significant figures.
False
This is false. (I got this question on my test.)
No it should be subtaction because:- x+11 = 36.3 Subtract 11 from both sides x = 25.3
To determine the correct number of significant figures in a calculation involving both addition and multiplication, follow these steps: Perform the addition or subtraction operation first, and count the number of decimal places in the result. For multiplication or division, count the number of significant figures in each number being multiplied or divided. The final answer should have the same number of significant figures as the number with the least number of significant figures in the calculation.