Flashcards
Assesment task 3 mathematics
Cards in this deck (26)
- 1how to you change an improper fraction to a mixed fraction?You divide by the numerator by the denominator.
- 2how do you change a decimal to a fraction?!. determine the denominator
2. use the decimal digits as the numerator
3. simplify the fraction
e.g. 0.376
equals 376 over 1000 - 3how do you change a fraction to a decimal?the vinculum sign is a division sign so 3 over 5 means 3 divided by 5 you must then calculate the answer to the division.
- 4how do you convert a fraction to a decimal?divide the numerator by the denominator then multiply the answer by 100.
- 5how do you change a decimal percentange to a fraction?you write the percentage over 100 then multiply the numerator and denominator by a power of 10 the simplify the fraction.
- 6how do you find the percentage of a quantity?you express the required percentage as a fraction then change the of sign to a multiplication sign and complete the multiplication.
- 7what is a coefficient?the coefficiant of an algebraic expression is the number attached to letters.
- 8what is a constant term?a constant term is a term in algebraic that has no letter attached.
- 9what is a pronumeral?a pronumeral is a letter in an expression.
- 10how is division written in algebraic?as a fraction
- 11what are like terms?like terms are are pronumerals that are identical in an expression beside from the coefficant. we combine like terms e.g.
3r t 8r t 3d t 2r would equal 13r t 3d - 12what are the rules for multiplying or dividing terms?1. divide or multiply numbers as usual
2. use powers when needed
3. leave out multiplication signs
4. use a fraction to show division - 13how do you expand brackets?you multiply each term by the term outside the grouping symbols e.g. 5 (m + 2)
5m + 10 7 (3 - x) = 21 - 7x - 14what is a sequence?a sequence is a list of numbers that follow a pattern.
- 15when working with negative numbers what does a - + a + =?a negative number plus a positive equals a negative.
- 16what does a - + a - =?a negative plus a negative equals a positive
- 17what does a + x a - =?a negative times a positive equals a negative.
- 18what does a - x a - =?a negative times a negative equals a positive.
- 19how do you multiply a fraction?to multiply a fraction you must first express any mixed fractions as improper fractions. divide the terms in the numerators then multiply by the denominators.
- 20how do you multiply a decimal by a power of 10?you move the decimal place to the right the same amount of places as there are zeros in the power of ten
- 21how you divide a decimal by a power of ten?you move the decimal point to the left the same amount of times as there are zeros in the power of ten.
- 22how do you divide two fractions?you find the reciprocal of the second fraction and multiply them. you must change mixed numerals to improper fractions.
- 23what is the dividend?a dividend is the number being divided
- 24what is a divisor?a divisor is the number the dividend is being divided by.
- 25what is the quotient?a quotient is the answe
- 26how do you multiply and divde negative fractions?you use the same method as with whole fractions but remembering the rules of negative and positive numbers.