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3rd grade Math Practice Test Suzy Skelton Third Grade Mathematics 16 Test. 26. It is 71 miles from Boston, MA, to Concord, NH. It is 138 miles from Concord, NH, to Colebrook, NH. About how many miles is this altogether? A. 100 B. 200 C. 300 D. 400 Use the calendar below to answer question 27.
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