SAT Math: Understanding Divisors in Division
Learn about divisors, a key concept for the SAT math section. This video explains what a divisor is, its role in division problems, and common mistakes to avoid. Perfect for students preparing for the SAT or looking to strengthen their math fundamentals.
Imagine you’re sharing a pizza with friends. The number of people you’re dividing it among? That’s a divisor in action.
Today, we’re exploring the word divisor, a term you might encounter on your SAT.
Word type: Divisor is a noun.
Meaning: A divisor is a number by which another number is divided. In mathematical terms, it’s the number that divides the dividend in a division problem.
Word history: The word divisor comes from the Latin word “divisor,” which means “a divider.” It entered the English language in the late 16th century, derived from the Latin verb “dividere,” meaning “to divide.”
Synonyms: Some synonyms for divisor include factor, denominator, and submultiple.
Antonyms: While not direct antonyms, related opposite concepts include dividend, numerator, and multiple.
Examples use in sentences: In the equation 12 divided by 3 equals 4, 3 is the divisor. The greatest common divisor of 48 and 18 is 6.
When calculating percentages, 100 is often used as a divisor. Common errors in use: A common mistake is confusing divisor with dividend.
Remember, the divisor is the number you’re dividing by, not the number being divided. Another error is assuming that a divisor must always be smaller than the number it’s dividing, which isn’t always the case in advanced mathematics.
Understanding the term divisor is crucial for your SAT math section. It’s a fundamental concept in arithmetic and algebra, often appearing in problems involving fractions, ratios, and factoring.
By mastering this term, you’re building a strong foundation for more complex mathematical concepts. Remember, in any division problem, the divisor is your active player, the number doing the dividing.
Keep practicing with various examples, and soon, identifying and working with divisors will become second nature.
