Bell Work. The cross country ski track is 1500 metres long, and the competitors ski around it 3 times. The Canadian has completed 5/12 of the race, and the Russian has completed 3/8 of the race. What is the distance between the skiers? Melanie has 72 coins in spare change. Half of the coins are quarters. 2/9 of the coins are dimes. How much money does Melanie have if the rest of the coins are nickels?

Page 98 #1 a)5.04 B) 3.5 C) 0.0336 D) -0.9 E) -43.56 F) 41.379 G) 0.414 (change 18% to 0.18!) H) 163.4375 (change 32% to 0.32)

Page 98 #2 A) 1.6 work: 8 ÷ 5 = 1.6 B) 3.2 work: 12 ÷ 3.75 = 3.2 C) 5.6 work: 17.92 ÷ 3.2 = 5.6 D) –6.24 work: -14.976 ÷ 2.4 = -6.24 E) -2.75 work: -14.3 ÷ 5.2 = -2.75 F) 0.00276 work: 0.12 x 0.023 = 0.00276

Page 99 #3 A) 3.4 + 4 x 5.03 b) -7.23 + 1.22 = 3.4 + 20.12 = -7.23 + 1.44 = 23.52 = -5.79 c) -1.3 – 19.5 ÷ 7.8 d) 4.2 ÷ (-25.3 + 25.23) = -1.3 – 2.5 = 4.2 ÷ -0.07 = -3.8 = -60

Page 99 #3 E) 1.32 – 0.92 F) (2.3 + 5) x (1.2 + 0.58)÷10 = 1.69 – 0.81 =(7.3) x (1.78)÷10 = 0.88 = 12.994 ÷ 10 = 1.2994 g) (2.3 + 5) x (1.2 + 0.58 ÷10) = 7.3 x (1.2 + 0.058) = 7.3 x (1.258) = 9.1834

Page 99 #3 H) 142.8 – 4.1 x (14.8 – 7.5) + 12.6 = 142.8 – 4.1 x 7.3 + 12.6 = 142.8 – 29.93 + 12.6 = 112.86 + 12.6 = 125.47

Page 99 #3 I) 9.8 x (4.5 ÷ (1.5 – 0.6) – 1.7) = 9.8 x (4.5 ÷ 0.9 – 1.7) = 9.8 x (5 – 1.7) = 9.8 x 3.3 = 32.34

Page 99 #3 J) 9.8 x (4.5 ÷ 1.5 – (0.6 – 1.7)) = 9.8 x (4.5 ÷ 1.5 - -1.1) = 9.8 x (3 - - 1.1) = 9.8 x (3 + 1.1) = 9.8 x 4.1 = 40.18