Rational Numbers Flashcards

Grade 6 · Math · Flashcards

Essential vocabulary and practice for rational numbers, absolute value, and ordering on the number line.

Flashcards

Rational number: Any number that can be written as a fraction p/q where p and q are integers and q ≠ 0
Integer: Whole numbers and their negatives: …−3, −2, −1, 0, 1, 2, 3…
Absolute value: Distance from zero on the number line; always non-negative. |−8| = 8
Opposite numbers: Two numbers with the same absolute value but different signs; e.g., 6 and −6
Is −5 a rational number?: Yes; −5 = −5/1
Is 0.333… a rational number?: Yes; 0.333… = 1/3 (repeating decimal = rational)
Compare −3/4 and −1/4: −3/4 < −1/4 because −0.75 < −0.25
|−12| vs |7|: 12 > 7, so −12 is further from zero than 7
Order −2, 1/2, −1, 0 least to greatest: −2, −1, 0, 1/2
Convert 0.75 to a fraction: 75/100 = 3/4
Negative numbers on the number line: Located to the left of zero; the greater the absolute value, the further left
Which is greater: −1/8 or −7/8?: −1/8 > −7/8 because −0.125 > −0.875