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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.
How is subtracting a negative integer related to its absolute value and addition?
Subtracting a negative integer is the same as adding its absolute value.
How is adding decimals similar to adding whole numbers?
Adding whole numbers is the addition of decimals where the decimal part is zero; in both cases the digits are place value aligned meaning that the decimal points, which lies between the units (or ones) and tenths columns, are aligned - in the whole number the decimal point is "hiding" at the end.
What does 1 to 100 mean when you are talking about place value of decimals?
What does it mean to talk about place
How does a place value chart help you add and subtract decimals?
Place Value Charts help you because they put the decimal in the right place.
