Add, subtract, multiply, or divide the following decimals. 1. addition equation 2. 3,968 × 0.1035 3. subtraction equation 4. 16.80 ÷ 4.96 5. 82.49 × 133.9 6. addition equation 7. 0.7864 ÷ 4.80 identify the following fractions as either proper or improper. 8. 14⁄ 15 9. 30⁄ 20 add, subtract, multiply, or divide the following fractions. remember to find the lcd first. 10. fraction addition equation 11. fraction addition equation 12. fraction subtraction equation 13. fraction subtraction equation 14. fraction multiplication equation 15. fraction multiplication equation 16. fraction multiplication equation 17. fraction division equation 18. fraction division equation round off the following numbers to the nearest thousand. 19. 674,620 20. 355,500 round the following numbers to the nearest tenth. 21. 26.425 22. 47.546 round the following numbers to the nearest cent and then to the nearest dollar. 23. $62.756 24. $38.415 perform the required calculations for each of the following items. round your answers to the nearest 0.1%. 25. a class had 30 pupils at the beginning of this school term, but now has 5 more pupils. what is the percent of increase? 26. eggs were $2.05 per dozen on january 1 and $2.00 per dozen on february 1. what percent did the price decrease during january? 27. during november the price of each share of a certain stock declined from $196 to $132. what was the rate of decline for that month? 28. by careful reorganization, a company was able to reduce the cost of operation from $21,840 per month to $17,190 per month. by what percent was the cost of operation reduced? 29. the circulation of a city library for september was 157,928 books; for october, 184,211 books. what was the percent of gain for october over september? express the following as a single discount rate. 30. what is the selling price of an article that lists at $1,500 subject to discounts of 40%, 25%, and 10%? (you may use the method described in “check your selling price.”) 31. what is the discount on $640 if the discount rates are 25%, 10%, and 5%?