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FOSTER Math Ex: Unit 1
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Key Concepts:
Terms in this set (26)
Consecutive Numbers
Numbers which follow each other in order, without gaps, from smallest to largest. Example: 1, 2, 3, 4
Dozen
12 items.
Prime Number
A number that has exactly two factors: 1 and itself.
Composite Number
A number with more than two factors.
Odd
Any integer (not a fraction) that cannot be divided exactly by 2. The last digit is 1, 3, 5, 7 or 9
Even
Any integer (not a fraction) that can be divided exactly by 2. The last digit is 0, 2, 4, 6 or 8.
Operation
A mathematical process. Addition, Subtraction, Multiplication & Division are examples.
Sum
The answer in an addition problem.
Product
The answer in a multiplication problem.
Difference
The answer in a subtraction problem.
Quotient
The answer in a division problem.
Factors
The numbers that you multiply together in a multiplication problem.
Perfect Square
The name of a product when a whole number is multiplied by itself. For example: 1, 4, 9, 16, 25.
Square Root
A number that is multiplied by itself to get another number. The opposite of the perfect square.
Base
The large number to the left of the exponent that is being repeatedly multiplied.
Exponent
The small number to the right of the base that tells how many times the base is multiplied by itself.
Twice
Happening two times or two times as many.
Double
To make twice as much. Multiply by 2.
Half
One of two equal parts of a whole
Example: my friend and I share a pizza equally: we get _______ each.
Triple
To multiply by 3.
Descending
Arranged from largest to smallest. Decreasing. Going down. (10, 9, 8, 7....)
Ascending
Arranged from smallest to largest. Increasing. (1, 2, 3, 4... )
Decimal Number
A number that shows a part that is less than a whole.
Tenths Place
The place value in a number that is one slot behind the decimal. Example: ".1"
Hundredths Place
The place value in a number that is two slots behind the decimal. Example: ".01"
Thousandths Place
The place value in a number that is three slots behind the decimal. Example: ".001"
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