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4th Grade Math SOL Review
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Gravity
Key Concepts:
Terms in this set (59)
parallel lines
What are lines that never touch and are always an equal distance apart?
perpendicular lines
What are lines that intersect to form right angles?
intersecting lines
What are lines that have one point in common (or cross)?
congruent
What are figures that have the same shape and the same size called?
right angle
An angle that is 90 degrees (It makes a square in the corner).
obtuse angle
An angle that measures more than 90 degrees but less than 180 degrees
acute angle
An angle that measures less than 90 degrees
line
A straight path of points that go on forever in both directions
line segment
A part of a line with two endpoints
ray
A part of a line, with one endpoint, that continues without end in one direction
point
An exact location in space/ It has no width, length, or height.
(1) have at least 3 straight sides,
(2) be a closed 2-dimensional figure, and
(3) NOT include line segments that cross
A polygon must _____________________.
180 degrees
What is the measure of a straight angle?
90 degrees
What is the measure of a right angle?
All sides are congruent.
What are true about the sides of a rhombus?
a quadrilateral
Any polygon with 4 sides is called...
a pentagon
Any polygon with 5 sides is called...
a hexagon
Any polygon with 6 sides is called...
a heptagon
Any polygon with 7 sides is called...
an octagon
Any polygon with 8 sides is called...
a nonagon
Any polygon with 9 sides is called...
a decagon
Any polygon with 10 sides is called...
a parallelogram
A quadrilateral with two pairs of parallel sides (pops) is called...
a rectangle
A quadrilateral with 2 pops and 4 right angles is called...
a square
A quadrilateral with 2 pops, 4 right angles, and all sides are equal is called...
a rhombus
A quadrilateral with 2 pops and all sides equal (congruent) is called...
a trapezoid
A quadrilateral with only 1 pops is called...
No, a trapezoid only has 1 pair of parallel sides and a rectangle must have 2 pops.
Can a trapezoid be a rectangle?
Opposite sides are parallel and congruent.
What do you know about the sides of a parallelogram?
a rectangle OR if the sides are equal, a square
A parallelogram with 4 right angles is called...
reflection
The fourth grade word for "flip" is ...
translation
The fourth grade word for "slide" is ...
a triangle
A polygon with three sides is called ...
rotation
The fourth grade math word for "turn" is ...
the product
What is the answer to a multiplication problem called?
the sum
What is the answer to an addition problem called?
the difference
The answer to a subtraction problem is called ...
the quotient
The answer to a division problem is called...
0.25
The decimal for 1/4 or 1 quarter is ...
0.5 or 0.50
The decimal for 1/2 or one half is ...
0.75
The decimal for 3/4 or three quarters is ...
0.2
What is the decimal for 1/5?
0.4
What is the decimal for 2/5?
No, because the order of the numbers changed.
Is 3 x (4 x 5) = (3 x 5) x 4 an example of the associative property of multiplication?
Yes, both sides of the equal sign total 60.
Does 3 x (4 x 5) = (3 x 5) x 4 ?
45
What is 45.456 rounded to the nearest whole number?
45.5
What is 45.456 rounded to the nearest tenth?
45.45
What is 45.456 rounded to the nearest hundredth?
9, 18, 27, 36, 45, 54, 63,72, 81
What are the first nine multiples of 9?
8, 16, 24, 32, 40, 48, 56, 64, 72
What are the first nine multiples of 8?
7, 14, 21, 28, 35, 42, 49, 56, 63
What are the first nine multiples of 7?
1, 12, 2, 6, 3, 4
What are all of the factors of 12?
1, 16, 2, 8, 4
What are all of the factors of 16?
1, 24, 2, 12, 3, 8, 4, 6
What are all of the factors of 24?
equally likely
The probability word for 1/2 or any fraction equivalent to 1/2...
likely
The probability word for any fraction greater than 1/2 but less than 1 is ...
unlikely
The probability word for any fraction less than 1/2 but greater than 0 is ...
impossible
The probability word for any fraction that has a zero in the numerator (top number) is ...
certain
The probability word for any fraction that reduces to 1 (such as 4/4, 6/6, or 9/9) is...
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