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2 cards from this section. Quick, good the night before a test.
Is the sum of 3/4 and 1/4 a rational number?
Think about what numbers you're adding.
What is the additive identity?
What number keeps other numbers unchanged when added?
Which of these lists only operations that rational numbers are closed under?
Think about which operations yield results within the same number set.
True or False: The additive identity for rational numbers is 1.
Which number keeps others the same when added?
Prove that rational numbers are closed under addition by providing an example.
Pick any two rational fractions and add them.
Using rational numbers, show the distributive property in action with 1/2(3 + 5).
Break it down into distributive steps.
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