Math 6 Reviewer Lesson 1 (Small Book)

• Fraction is a number that represents a part of a whole or group.
• Percent shows a part of a whole in terms of 100.
• To convert a decimal to percent,multiply the decimal by 100 and add the percent sign.

  Or,move the decimal point two places to the right.
• Improper Fraction is a fraction where the numerator is greater than its denominator.
• Mixed numbers are fractions with both integer and fractional parts.
• Mixed Number is a combination of an integer and a proper fraction.
• Proper Fraction is a fraction where the numerator is less than its denominator.
• A mixed number can be converted into an improper fraction by multiplying the whole number by the denominator and adding it to the numerator.
• An improper fraction can be converted into a mixed number by dividing the numerator by the denominator and finding the remainder.
• A mixed number can be converted into an improper fraction by multiplying the whole number by the denominator and adding it to the numerator.
• To add/subtract fractions, find the LCM of their denominators and convert them into equivalent fractions with that common denominator.
• Converting a percent to decimal is to divide the percent by 100 or move the decimal two places to the left.
• To convert a fraction to a decimal you have to divide.Use the numerator as the dividend, and the denominator as the divisor.
• To compare numbers,convert them into one singular form.
• Multiplying fractions is to multiply the fractions by each other.
• To divide fractions,get the reciprocal of the second fraction,then multiply.
• For multiplying decimals,you have to multiply like normal. Then, count how many numbers are before the decimal point,add the count,then place the decimal.
• To multiply percents, change the percent to a fraction or decimal then multiply.
• When adding/subtracting decimals,make sure that they all have the same number of digits before the decimal point. If not, add zeros at the end of the smaller number until it has the same amount of digits as the bigger number.
• If you have to divide 2 decimals , convert into whole numbers.
• In dividing decimals, make sure that there's no zero on the right side of the decimal point. If so, move the decimal point two places to the left.
• If the divisor is a decimal , put a decimal point above the divisors decimal point.