CHAPTER 9 / SPECIAL MATH PROBLEMS 343
- If neither anor bis 0, what is the relationship between a÷band b÷a?
- What is the relationship between a−band b−a?
Complete the following “parity rules.”- Odd ×even = 4. Even ×even = 5. Odd ×odd =_____
- Even +even = 7. Odd +even = 8. Odd +odd =_____
Complete the following “sign rules.”- If nis odd, (−1)n=. 10. If nis even, (−1)n=. 11. If x+y=0 and x≠0, then x/y=_____.
- Dividing by xis the same as multiplying by __.
- Subtracting (x+1) is the same as adding __.
- When a number is multiplied by its reciprocal, the result is __.
- When a number and its opposite are added, the result is __.
- When a number (other than 0) is divided by its opposite, the result is __.
- If a positive number is multiplied by a number greater than 1, what happens to it? ___
- If a positive number is multiplied by a number between 0 and 1, what happens to it? ___
- If a negative number is multiplied by a number greater than 1, what happens to it? ___
- Is xalways bigger than −x? Explain.
- Is x^2 always bigger than x? Explain.
- Is x^3 always bigger than x^2? Explain.
- If xis between 0 and 1, then 1/xis _____.
- If a> b> 0, then is ____.
- If b> a> 0, then is ____.
a
b
a
bConcept Review 3:
Numerical Reasoning Problems