Math 7

• coefficient


  a number that is multiplied by a variable
• term


  anything separated by a plus or minus sign
• variable


  a letter that stands for an unknown number
• difference


  the result of subtraction
• evaluate


  to find the value of an expression
• expression


  a group of numbers, variables, and/or operation symbols that represents a mathematical relationship. Numerical expressions contain only numbers. Algebraic expressions also include variables.
• factor


  a number, or expression with parentheses, that is multiplied
• product


  the result of multiplication
• quotient


  the result of division
• sum


  the result of addition
• constant


  staying the same
• substitute


  to replace one thing with another
• Integers can be represented on a number line where positive integers are to the right of zero and negative integers are to the left of zero.
• Factors can be added to find their sum, which is equal to the original number.
• A factor is one of the numbers that make up another number or expression.
• Integers do not have any fractional or decimal parts.
• The product of two numbers is the result when they are multiplied together.
• An integer is a whole number that can be positive, negative, or zero.
• The product of two numbers is found by multiplying them together.
• A fraction represents a part or portion of a whole.
• Fractions have numerators (top) and denominators (bottom).
• Addition of Integers: To add two numbers, find their difference (absolute values) and then determine whether they have the same sign (+/+ or -/-) or different signs (-/+). If they have the same sign, sum them up; if not, subtract the smaller from the larger.
• The product of two factors is called a multiple.
• Subtraction of Integers: Subtract the second integer from the first integer using the rules of adding integers.
• When adding fractions, it's important to ensure that all denominators are the same.
• An integer is a whole number without any fractions or decimals.
• Number

  • A Number is a count or measurement of something. For example, the number of pencils in your bag or the number of students in your classroom.
• Numeral


  A numeral is a symbol, name or representation of a number. For example, 10 or ten.
• Digit 


  A digit is a single symbol used to make numerals. For example 123
• Natural numbers can be counted 1 is the best first natural numbers.
• Whole numbers are natural numbers but start with 0
• Irrational numbers cannot be represented as a fraction or a ratio. We can say it is the opposite of Rational numbers. Irrational numbers are numbers that have none-recurring decimals. Examples are √2, √3,