This clip explains that, now that we understand signed numbers and fractions, we can solve equations whose solutions are not necessarily whole numbers. The clip states that, "
in general, it doesn't matter whether our equations involve positive or ...
This clip explains that, like signed whole numbers, signed fractions have absolute values "
and they work in exactly the same way. For example, the absolute value of 6/7 is just that, 6/7, but the absolute value of negative 6/7 is also 6/7."
This clip explains that the freedom to move the negative sign out front makes multiplication of signed fractions exactly like multiplication of any signed numbers.
This clip explains that, when dividing signed numbers, if the divisor and dividend have different signs, the quotient is negative.
This clip provides exercises to help students better understand how to add signed numbers. It references two rules, one of which is utilized when the signs are the same, the other of which applies when the signs are different.
This clip explains the rule for adding numbers with different signs. "Subtract the absolute value of the addends to get the absolute value of the answer," the clip advises. "As for the sign of the answer, it's the same as the sign of the addend with...
This clip explains that when adding two or more numbers with the same sign, to get the absolute value of the answer, we add the absolute value of the addends. "As for the sign of the answer," the clip continues, "
it's the same as the sign of the a...
This clip explains that any time we add 2 numbers with the same absolute value, but opposite signs, their sum will be zero.
This clip explains the rule for adding two negative numbers: to get the absolute value of the answer, add the absolute values of the addends. "As for the sign of the answer," the clip continues, "
it's the same as the sign of the addends."