1. Name the place-value position of the underlined digit in 67. A. ones B. tenths C. tens D. hundreds Hint 2. Tell which value renames the number.4 hundreds = 3 hundreds +  ?  tens A. 7 B. 40 C. 10 D. 1 Hint 3. Round 139.708 to the ones place. A. 139.71 B. 139.7 C. 139 D. 140 Hint 4. A pen is 16.37 centimeters long. To the nearest tenth of a centimeter, how long is the pen? A. 20 cm B. 16 cm C. 16.3 cm D. 16.4 cm Hint 5. Which choice uses rounded numbers to get an estimate? A. 16 + 8 = 24 B. 16 − 8 = 8 C. 17 − 8 = 9 D. 17 + 8 = 25 Hint 6. Find 4,513 + 3,879. A. 7,382 B. 7,392 C. 8,392 D. 634 Hint 7. Last year the population of a town was about 26,400 and this year the population is about 29,200. What is the difference? A. 3,600 B. 55,600 C. 3,800 D. 2,800 Hint 8. Find 6.09 + 2.45. A. 8.44 B. 9.54 C. 3.64 D. 8.54 Hint 9. Find 3.47 + 4.93. A. 7.3 B. 7.4 C. 0.44 D. 8.4 Hint 10. Find the result mentally using compensation.44 + 57 A. 13 B. 93 C. 91 D. 101 Hint 11. Find the result mentally.45.2 − 3.5 A. 42.7 B. 41.7 C. 42.3 D. 48.7 Hint 12. Which choice uses compatible numbers to get an estimate?372 − 124 A. 300 − 100 = 200 B. 375 − 125 = 250 C. 300 − 100 = 200 D. 370 − 120 = 250 Hint 13. Find 1.2 + 6.8 + 0.9 mentally. A. 9.9 B. 8.9 C. 17 D. 16 Hint 14. Find 75 + 23 + 25 mentally. A. 98 B. 125 C. 123 D. 150 Hint