Solve each of the following

1. 16 + (-23) + 8
2. 38 + (-22) + (-9)
3. -32 + (-8) + (-5)
4. 30 – (-14) – (-9)
5. -46 + 20 – (-15)

Find the product in each the following

1. -4 x 7 x (-5)
2. (-18) x (-20) x (-50)
3. 8 x (-4) x 25 x (-125)
4. 6 x (-34) x (-6) x (-14)

Calculate each of the following   

1. 63 : [(-72) : 8]
2. [30 : (-5)] : (-2)
3. [(-84) : (-7)] : [(-32) : 8]

If a = -15, b = 6, and c = -3, calculate each of the following :    

Solve the following problems

1. The scores of three students in a quiz are -3, 11, and -4. What is their total score?
2. initial temperature is -3°C, what is the temperature of the liquid after 2 minuted?
3. The initial temperature of cold room is -5°C. The temperature in the room goes up by 8°C and then drops by 12°C. What the final temperature in the room?
4. A banana cake costs Rp 3,000. Ayu buy 8 boxes of the cake. If each box contains 10 banana cakes, find the total amount of money she has to pay
5. A ticket to a cinema costs Rp 8,000. If 384 tickets are sold, find the total amount of money collected
6. 504 students are divided equally into 18 classes. How many students are there in each class?
7. 12390 sweets have to be packed into small plastic bags. If each bag can contain 60 cweets, haow many bags are needed? How many sweets are left?
8. There are 50 boxes of pencils. Each box contain 12 pencils. Later, the pencil are distributed equally to 24 students. How many pencils does each students receive?