## Massachusetts MCASREA ... Real review, Real practice, Real results. REA's Massachusetts Grade 8 MCAS Math Study Guide!Fully aligned with the Learning Standards in the Massachusetts Curriculum FrameworkAre you prepared to excel on this state high-stakes assessment exam? * Take the diagnostic Pretest and find out what you know and what you should know* Use REA's advice and tips to ready yourself for proper study and practice Sharpen your knowledge and skills* The book's full subject review refreshes knowledge and covers all topics on the official exam and includes numerous examples, diagrams, and charts to illustrate and reinforce key math lessons * Smart and friendly lessons reinforce necessary skills * Key tutorials enhance specific abilities needed on the test * Targeted drills increase comprehension and help organize study * Color icons and graphics highlight important concepts and tasks Practice for real* Create the closest experience to test-day conditions with a full-length practice Posttest * Chart your progress with detailed explanations of each answer * Boost confidence with test-taking strategies and focused drills Ideal for Classroom, Family, or Solo Test Preparation!REA has helped generations of students study smart and excel on the important tests. REA’s study guides for state-required exams are teacher-recommended and written by experts who have mastered the test. |

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### Contents

SUCCEEDING ON THE MCAS | xvi |

j Absolute Value Equations 139 | ci |

Permutation Combination and Probability 151 | cxiii |

Iteration 161 | vi |

Circles 204 | cxiii |

Solids 211 | cxx |

Fractals 230 | 13 |

Algebraic 235 | 48 |

Spatial SenseRelationships Drill Answer Key 286 | 2 |

Arithmetic Diagnostic Test 306 | 21 |

Algebra Diagnostic Test 313 | 24 |

Geometry Diagnostic Test 321 | 32 |

Word Problems Diagnostic Test 332 | 24 |

REFERENCE INFORMATION 342 | 7 |

ANSWER KEY 365 | 29 |

34 | |

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### Common terms and phrases

algebraic expression Answer Booklet apothem average calculate called Celsius centimeters circle class intervals congruent convert coordinates correct answer degrees denominator discount DRILL equal EXAMPLE exponent factor Fahrenheit figure Find the area Find the solution fraction frequency histogram gallons given graph greatest common divisor hypotenuse inches inductive reasoning integer interior angles intersect isosceles isosceles trapezoid iteration LABC left side line segment median meters miles missing number multiply number line ounces parallel parallelogram percent perimeter perpendicular plane pounds PROBLEM Find PROBLEM Write protractor Pythagorean Theorem quadrilateral question radius ratio real number rectangle regular polygon represent the unknown rewrite the inequality rewrite the proportion rhombus right angle right side right triangle score shown slope slope-intercept form SOLUTION Step solve the equation Solve the expression square feet subtract total number trapezoid unknown number unknown quantity vertex vertical write both sides Write the algebraic