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Why do you have to place a zero as a placeholder when adding subtracting decimals?
A zero placeholder is necessary when adding or subtracting decimals to ensure that numbers are aligned correctly according to their place values. For example, if you have 2.5 and 1.75, it helps to write 2.50 to clearly align the tenths and hundredths places. This alignment prevents errors in calculations by maintaining the proper value of each digit, allowing for accurate addition or subtraction. Without the placeholder, it could be easy to miscalculate by misaligning the digits.
What else can I help you with?
When adding or subtracting decimals how can you be sure to add or subtract only digits that have the same place value?
The simplest way is to line up the numbers so that their decimal points are aligned, and corresponding digits are also aligned according to their place value.
How can you add decimals without a place-value chart to make sure you adding the same place value?
you can line up the decimals
Is it true if subtracting a number ending in 9 means that you move a 10?
Yes, when you subtract a number that ends in 9, you are essentially subtracting 10 and adding 1. This is because when you subtract 9 from a number, you are reducing the ones place by 9, which is the same as subtracting 10 and adding 1. For example, when you subtract 9 from 29, you are subtracting 10 and adding 1, resulting in 20.
How do you estimate using front-end estimation?
by adding or subtracting the values of the digits in the front place
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.
What place value has to do with adding and subtracting decimals?
because if you don't know the place value you might have trouble answering the question and you might get it wrong .
Why do you line up the decimal when adding or subtracting decimal numbers?
Yes, When Adding and Subtracting decimals you should line up the decimals. You need to keep each place value in the same column, the same as when you add whole numbers you keep the ones column lined up, same for the tens, etc. Lining up the decimal points makes sure that the tenths column is kept together, same for the hundredths, and so on.
When adding or subtracting decimals how can you be sure to add or subtract only digits that have the same place value?
The simplest way is to line up the numbers so that their decimal points are aligned, and corresponding digits are also aligned according to their place value.
How can you add decimals without a place-value chart to make sure you adding the same place value?
you can line up the decimals
When multiplying decimals with whole numbers do you line up the whole numbers?
Hey awesome Question. The answer is no you do not have to line up the decimals when multyping only when adding and subtracting. The main thing is when you multiply make sure you put the decimal in the right place in your answer. YOu count how may places their are behind the decimals in BOTH numbers then you make sure their are that many places behind the decimal in you answer. :)
Is it true if subtracting a number ending in 9 means that you move a 10?
Yes, when you subtract a number that ends in 9, you are essentially subtracting 10 and adding 1. This is because when you subtract 9 from a number, you are reducing the ones place by 9, which is the same as subtracting 10 and adding 1. For example, when you subtract 9 from 29, you are subtracting 10 and adding 1, resulting in 20.
How do you estimate using front-end estimation?
by adding or subtracting the values of the digits in the front place
What does place value has to do with adding and subtracting?
It stops you from adding tens to hundreds, or subtracting thousands from millions. The place value is used to line up columns correctly to ensure that the correct values are being used. The decimal point is the deciding factor in locating the proper numbers.
What is a compound word with the word place in it?
placeholder
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.
Is there a place to edit pictures on the internet such as to adding and subtracting colors ect... if you draw one and upload it to the computer?
picnic on facebook or the website
Where to place a decimal when adding mixed decimals?
The decimal point, which I think you meant, is lined up vertically in a row of numbers to be summed.
