1. There are 3 boat docks at a beach. If each dock has 5 boats tied to it, how many boats are there altogether? A. 18 B. 8 C. 15 D. 13 Hint 2. 8 × 3 = ? 8 × 30 = ? 8 × 300 = ? 8 × 3,000 = ? A. 240; 2,400; 24,000; 240,000 B. 11; 110; 1,100; 11,000 C. 24; 240; 2,400; 24,000 D. 2.4; 24; 240; 2,400 Hint 3. How can you determine how many zeros to add to the stem of the multiplication problem? A. Add a zero for each number in the stem. B. Add the same number of zeros that the numbers have after you take off the stem. C. You always add two zeros to each number after you multiply the stem. D. Add a zero for the total number of digits in each number. Hint 4. A. 50 B. 60 C. 90 D. 32 Hint 5. A. 46 B. 63 C. 84 D. 76 Hint 6. A. 304 B. 160 C. 376 D. 324 Hint 7. A. 5,244 B. 5,844 C. 1,530 D. 4,824 Hint 8. Round 74 to the nearest ten. A. 70 B. 80 C. 75 D. 65 Hint 9. Estimate 82 × 6. Round to the nearest ten. A. 80 × 6 = 480 B. 90 × 6 = 540 C. 80 × 6 = 140 D. 90 × 6 = 150 Hint 10. Estimate 770 × 2. Round to the nearest hundred. A. 800 × 2 = 1,000 B. 800 × 2 = 1,600 C. 700 × 2 = 1,400 D. 770 × 2 = 1,540 Hint 11. Find the product. A. 26 B. 29 C. 69 D. 63 Hint 12. Find the product. A. 22,897 B. 21,597 C. 22,847 D. 11,048 Hint