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Do decimal points need to be lined up when adding and subtracting decimals?
Yes, unless you are an expert.
What do you do with the decimal when adding?
When adding decimal numbers, the decimal points should be lined-up.
How is addition like subtraction?
Well, technically, addition and subtraction are opposites. if you add two numbers together, then you take one and put the other with it. if you subtract two numbers, you take one away from the other. if you are adding or subtracting decimals, then make sure that the decimals are lined up. Fractions have some different rules.
How do you solve a long division problem?
How to solve long division problem:When dividing two numbers, the dividend and divisor; the answer is the quotient.Make note of where decimal points is in the dividend and divisor.Simplify the long division problem by moving the decimals of the divisor and dividend by the same number of decimal places.Keep the numbers lined up straight from top to bottom.After each step, be sure the remainder for that step is less than the divisor. If it is not, there is a problem - check your math.In the end, any left over is called the remainder
Where do coplanar points lie on?
Coplanar points lie on the same plane. A plane is a flat, two-dimensional surface that extends infinitely in all directions. Coplanar points can be thought of as points that all lie in the same plane and can be connected by straight lines without leaving that plane.
