214 Answer Key
- Closure property of addition
- Associative property of addition
- Distributive property
- Additive inverse property
- Zero factor property
- Associative property of multiplication
- Multiplicative identity property
Chapter 2 Computation with Real Numbers
Exercise 2
- − 45 = 45
- 588 = 585
- − 52 =
3
52
3- “Negative nine plus the opposite of negative four equals negative nine plus four”
- “Negative nine minus negative four equals negative nine plus four”
- − 80 +− 40 =− 120
- 0.7 +−1.4 =−0.7
- ⎛−
⎝⎜
⎛⎛
⎝⎝⎞
⎠⎟⎞⎞
⎠⎠⎛
⎝⎜⎛⎛
⎝⎝⎞
⎠⎟⎞⎞
⎠⎠=− =−5
62
510
301
318
36
−=−
(−100)(−8) = 800
1
2() 400 ⎛⎝⎜⎛⎛⎝⎝ ⎞⎠⎟⎞⎞⎠⎠= 200−−=−⋅−⋅=−
−=11
3
1
34
33
1
334
14- −450.95 − (−65.83) =−385.12
14.^3
11
5
113
115
118
11−−⎛
⎝⎛⎛
⎝⎝⎞
⎠⎟⎞⎞
⎠⎠=+=