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Which machine could add and subtract number?
The calculator is the most common machine to add and subtract numbers. Computers are also very good at this and are adding and subtracting for us all the time.
What is the significance of the number zero in Roman numerals?
The number zero does not have a significance in Roman numerals because the Romans did not have a symbol for zero. Roman numerals are based on a system of adding and subtracting values of different symbols to represent numbers.
What is the significance of the number "0" in Roman numerals?
The number "0" does not have a specific representation in Roman numerals. Roman numerals were based on a system of adding and subtracting values of different symbols, so there was no need for a symbol to represent zero.
What was the significant achievements of the ancient Egyptians in science and technology?
~Wrote folk tales such as "The Tale of Sinuhe"~Built amazing temples/ pyraminds.~Interesting Painting/ sculpting Describe_three_achievements_of_ancient_Egyptians_in_the_arts_of_learning
What century does 701 belong to?
The year 721 was in the 8th century. Someone can determine what century a year is by adding one to whichever number is listed first in the year, and when the year got to 4 digits, it would go by the first 2 numbers.
Why it is important to line up decimal numbers by their play value when you add or subtract them?
This is true for adding and subtracting ALL numbers, not just decimal representations.
When subtracting or adding numbers in scientific notation why do the exponents need to be the same?
This is effectively the same as lining up the decimal points when adding or subtracting ordinary decimal fractions.
When do you need to write zero as a placeholder when adding and subtracting decimals?
Adding decimal same as adding whole numbers
Why is it important to line up the decimal points when adding or subtracting but not when multiplying?
Because when adding or subtracting, the operations must take account of the place values of individual digits in the numbers. When multiplying, only the overall order of magnitudes are relevant for placing the decimal point in the product.
When adding or subtracting decimals the decimal point must be in line for all numbers?
Yes.
How is adding and subtracting decimals similar to and different from adding and subtracting whole numbers?
You write down the numbers you want to add and subtract, making sure the decimal points are aligned. Then, you add (or subtract) EXACTLY as you would add or subtract integers. The decimal point in the solution should be aligned with the decimal points in the original numbers.
What happens to the decimal in adding and subtracting decimals?
When you are adding and subtracting decimals, youare +/- ing the whole numbers and tenths in the number. the decimal might go away ex: 1.3-0.3=1 or it won't ex: 1.9-0.3=1.6
Why do you estimate when adding or subtracting decimal numbers?
In more than 40 years as a mathematician, I have never needed to do so.
What is the definition of adding and subtracting integers?
adding and subtracting integers is when you add and minus 2 numbers
What is the rule for significant figures when adding or subtracting decimals?
When adding and/or subtracting, your answer can only show as many decimal places as the measurement having the fewest number in the decimal places.
How are subtracting and adding related?
use numbers
What are the rules for significant figures when multiplying and adding numbers?
When multiplying or dividing numbers, the result should have the same number of significant figures as the factor with the fewest significant figures. When adding or subtracting numbers, the result should have the same number of decimal places as the number with the fewest decimal places.
