1.1 Integers and Rational Numbers

www.ck12.org Chapter 1. Arithmetic Review30. (−5.6) − (−12.6) + (−6.6)31. 19.4 + 24.232. 8.7 + 3.8 + 12.333. 9.8 − 9.434. 2.2 − 7.3Which property has been applied?35. 6.78 + (−6.78) = 036. 9.8 + 11.2 + 1.2 = 9.8 + 1.2 + 11.237. 4 3 − ( − 5 6)=43 + 5 638. 8(11) ( 18)= 8( 18)(11)Solve the real-world situation.39. Carol has 18 feet of fencing and purchased an addition 132 inches. How much fencing does Carol have?40. Ulrich is making cookies for a fundraiser. Each cookie requires 3 8pound of dough. He has 12 pounds of cookiedough. How many cookies can Ulrich make?41. Bagger 288 is a trench digger, which moves at 3 8miles/hour. How long will it take to dig a trench 14 mileslong?42. Georgia started with a given amount of money, a. She spent $4.80 on a large latte, $1.20 on an English muffin,$68.48 on a new shirt, and $32.45 for a present. She now has $0.16. How much money, a, did Georgia have in thebeginning?43. The formula for an area of a square is A = s 2 . A square garden has an area of 145 meters 2 . Find the length ofthe garden exactly.33