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Unit 2 Math 7th Grade Ms. K. Samuels

Across
states that the numbers on which we operate can be moved or swapped from their position without making any difference to the answer.
the magnitude of a quantity, irrespective of sign; the distance of a quantity from zero. Symbolized by two vertical lines, as |3| or |−3| is equal to 3.
the result of subtracting one number from another.
property states that when you multiply a number by 1, the answer is the original number. For example, a × 1 = a
is the number obtained by dividing one number by another.
The result of adding two or more numbers.
shows the relationship between the product of one term times the sum of two terms, a(b + c)
is a decimal that has a digit, or a block of digits, that repeat over and over and over again without ever ending.
Down
if you add or multiply numbers, it does not matter where you put the brackets.
is a number that is of the form p/q where p and q are integers and q is not equal to 0.
is a value which when multiplied by the original number results in 1. It is the reciprocal of a number.
of a number is what you add to a number to create the sum of zero.
a decimal number that continues endlessly, with no group of digits repeating endlessly.
a way of recording repeating decimals by drawing a bar over the repeated digits.
a pair of numbers that, when added together, equal zero.
is the result of multiplication, or an expression that identifies factors to be multiplied.