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Use Self-Check: Questions 1–4 and the Workshop Menu: Planet Problems to select practice for choosing appropriate strategies and for solving multistep addition and subtraction problems.
Use the distances and picture below to solve Question 5.
- Jerome said the distance between Neptune's orbit and the Earth's orbit is about 2,800,000,000 miles.
- Do you agree with Jerome's estimate? Why or why not?
- Did you need to find an exact answer or an estimate to solve this problem?
- Shannon told Jerome that the distance could not be larger than 2,793,000,000 miles because that is the distance between the sun and Neptune. Your estimate must be smaller than the largest distance. Do you agree with Shannon's response to Jerome? Why or why not?
- Find a reasonable estimate to Jerome's problem.