A number line is shown below. The numbers 0 and 1 are marked on the line, as are two others numbers a and b.
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a 0 1 b
Which of the following numbers is negative? choose all that apply. Explain your answer.
1. a + 1
2. a + 2
3. - b
4. a + b
5. -a
6. 0 + a
A number line s shown below. Zero is marked an all points are equal distance apart.
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e f 0 1 g h
Which of the following numbers are positive? choose all that apply. Explain your reasoning.
1. e + f
2. f + g
3. 0 + f
4. h + f
5. 0 + e
6. g + e
7. f + h