Understanding Whole Numbers
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Questions and Answers

Which property of whole numbers is demonstrated by the equation $5 \times (2 + 3) = (5 \times 2) + (5 \times 3)$?

  • Distributive Property (correct)
  • Associative Property
  • Commutative Property
  • Closure Property

A farmer has 3 fields. Field A has 15 cows, field B has 12 cows, and field C has 8 cows. Using the associative property of addition, which expression demonstrates how the farmer can group the fields to find the total number of cows?

  • 15 × (12 + 8) = (15 × 12) + (15 × 8)
  • (15 + 12) + 8 = 15 + (12 + 8) (correct)
  • 15 + 12 = 12 + 15
  • 15 + 12 + 8 = 15 + 8 + 12

A pizza is cut into 8 equal slices. If you take 2 slices and your friend takes 3 slices, what geometric shape are you primarily working with when considering the whole pizza?

  • Polygon
  • Triangle
  • Quadrilateral
  • Circle (correct)

Which of the following statements is NOT true regarding whole numbers and the properties that apply to them?

<p>Division by zero is a defined operation within the set of whole numbers. (C)</p> Signup and view all the answers

If a builder is designing a roof with an angle that is greater than 90 degrees but less than 180 degrees, what type of angle is being used?

<p>Obtuse Angle (A)</p> Signup and view all the answers

In a park design, a circular flower bed has a diameter of 10 feet. A path cuts straight across the flower bed through the center. What is the length of this path?

<p>10 feet (B)</p> Signup and view all the answers

A gardener is planning a garden bed in the shape of a quadrilateral where opposite sides are parallel and all sides are of equal length, but the angles are not right angles. Which shape best describes this garden bed?

<p>Parallelogram (D)</p> Signup and view all the answers

A city planner is designing a new park with a playground shaped like a triangle. Two sides of the triangle are equal in length. What type of triangle is the playground?

<p>Isosceles (D)</p> Signup and view all the answers

Which of the following statements is NOT always true regarding integers?

<p>The difference between a positive and a negative integer is positive. (A)</p> Signup and view all the answers

A rectangle has a length of 8 cm and a width of 5 cm. If the length is increased by 2 cm and the width is decreased by 1 cm, how does the area change?

<p>The area increases by 2 square cm. (A)</p> Signup and view all the answers

Which of the following shapes is defined by having only one pair of parallel sides?

<p>Trapezoid (B)</p> Signup and view all the answers

Which of the following operations will always result in a value greater than the original fraction, assuming the fraction is a positive proper fraction?

<p>Dividing by a proper fraction. (C)</p> Signup and view all the answers

What is the value of the expression $3x + 5$ when $x = -2$?

<p>-1 (D)</p> Signup and view all the answers

Which 3D shape can be formed by folding a flat net consisting of one square and four congruent triangles, where each triangle's base is a side of the square?

<p>Square Pyramid (A)</p> Signup and view all the answers

A set of data consists of the following values: 5, 8, 12, 6, 9. What is the range of this data set?

<p>7 (D)</p> Signup and view all the answers

After simplifying, which of the following fractions is equivalent to $\frac{24}{36}$?

<p>$\frac{2}{3}$ (C)</p> Signup and view all the answers

Simplify the expression: $5.25 + 3.8 - 1.55$

<p>7.5 (D)</p> Signup and view all the answers

A class has 25 students. If 15 students like apples and 10 students like bananas, and no student likes both, what percentage of students do not like either apples or bananas?

<p>0% (C)</p> Signup and view all the answers

Flashcards

Natural Numbers

Numbers 1, 2, 3, and so on, continuing infinitely.

Whole Numbers

The set of natural numbers plus zero: 0, 1, 2, 3,...

Closure Property

The property where the sum or product of two whole numbers is also a whole number.

Commutative Property

Changing the order of numbers in addition or multiplication doesn't change the result.

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Associative Property

Changing the grouping of numbers in addition or multiplication doesn't change the result.

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Distributive Property

Multiplication distributes over addition: a × (b + c) = a × b + a × c.

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Point

A location in space.

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Acute Angle

An angle measuring less than 90 degrees.

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Square

A quadrilateral with all sides equal and all angles 90 degrees.

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Rectangle

A quadrilateral with opposite sides equal and all angles 90 degrees.

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Parallelogram

A quadrilateral with opposite sides parallel and equal.

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Trapezoid

A quadrilateral with one pair of parallel sides.

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Integers

Whole numbers, their negatives, and zero.

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Fraction

Part of a whole, with a numerator and denominator.

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Decimals

Fractions represented using a decimal point.

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Data

A collection of facts or information.

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Perimeter

The distance around a two-dimensional shape.

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Area

The amount of surface covered by a two-dimensional shape.

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Study Notes

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Description

Explore the basics of whole numbers, including their definition, properties, and fundamental operations. Learn about natural numbers, the number line, and key properties like closure, commutativity, and associativity. This covers basic arithmetic principles.

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