Basic Math & Pre-Algebra All-in-One For Dummies (+ Chapter Quizzes Online). Mark Zegarelli

Читать онлайн книгу.

Basic Math & Pre-Algebra All-in-One For Dummies (+ Chapter Quizzes Online) - Mark  Zegarelli


Скачать книгу

      (a) math Fifteen is less than math, so subtract math and attach a negative sign to the result: −7.

      (b) math Twenty-seven is less than math, so subtract math and attach a negative sign to the result: math.

      (c) math Eighty-nine is less than math, so subtract math and attach a negative sign to the result: math.

      (d) math One thousand is less than math, so subtract math and attach a negative sign to the result: math.

      3

      (a) math To negate math, attach a negative sign: math

      (b) math To negate math, attach a negative sign: math. Now cancel adjacent negative signs: math.

      (c) math Zero is its own negation.

      (d) math Add first: math, and the negation of math.

      (e) math Subtract first: math, and the negation of math.

      (f) math Begin by subtracting: math, and the negation of math.

      4

      (a) math The number math is already positive, so the absolute value of math.

      (b) math The number math is negative, so the absolute value of math.

      (c) math First, do the addition inside the absolute value bars: math, which is positive. The absolute value of math.

      (d) math First, do the subtraction: math, which is positive. The absolute value of math. You have a negative sign outside the absolute value bars, so negate your answer to get math.

      (e) math Begin by subtracting: math, which is negative. The absolute value of math.

      (f) math The absolute value of math.

      5

      (b) math Start at math, down math.

      (c) math Start at math, down math.

      (d) math Start at math, up math.

      (e) math Start at math, down Скачать книгу