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Can zero change a sum?
Adding or subtracting zero cant, multiplying or dividing by zero can.
How is adding positive and negative numbers similar to adding integers?
It is the same thing, since "integers" consists of positive and negative numbers (and zero).
Why is multiplying or dividing the numerator and the denominator by the same number the same as multiplying or dividing the fraction by 1?
Because multiplying or dividing them by the same NON-ZERO number does not alter their ratio.
Is zero the identity number for multiplication?
No. Zero is the identity element of addition. One is the identity element of multiplication. That means that adding zero, or multiplying by one, doesn't change the number.
How is multiplying and dividing rational numbers similar?
Dividing by a non-zero rational number is the same as multiplying by its reciprocal.
When do you need to write zero as a placeholder when adding and subtracting decimals?
Adding decimal same as adding whole numbers
Is the value of 7.9 changed when you annex a zero after 7.9?
no it is not change because if you actually do it 7.90=7.9 you would still get the same thing
Is a zero angle the same thing as a line?
no, it is the same thing as a RAY
How can you solve an equation to get an equivalent equation?
In general, if you apply the same operation to both sides of an equation, you get an equivalent equation - at least if you do simple things like adding, subtracting, multiplying by a non-zero number, and dividing by some number.
Why does the equation 5 multiplied by 0 equal 0?
5 times 0 is the same as adding up zero fives. Since you aren't adding any numbers, the answer is zero.
Does adding 0 change a number?
Adding zero to a number will give you the same number. Example: 5 + 0 = 0
A ray is the same thing as a .?
zero angle
