Year 7 Maths - Decimals Pre-Test

John participated in a school competition and won. He was awarded fifteen dollars and twenty five cents as a reward.

 

a)     Write John's reward money as a dollar value.

Oliver went to a toy store and bought a toy for thirty dollars and seventy-five cents.

  

If the cost of the toy is represented in dollars, what place value does the three digit have?

Rahul has 25.678 kg of oranges. He needs to buy 1000 times more oranges to supply for the annual city festival. How many kg of oranges will Rahul have after purchase? (leave the kg off the end)

Oliver has 784 oranges. He wants to divide them into 200 equal portions for his classmates. How many oranges will each portion contain?

John and Mary own a solar farm together. It generates 5273.91234 kiloWatts of electricity per year. They need to report this to Alex, their business partner. Help them by rounding this usage to 4 decimal places.

John and Mary are comparing the annual energy consumption of their refrigerators. John's refrigerator consumes 5123.9142504 kW per year, while Mary's consumes 5123.9132504 kW per year. Which refrigerator consumes more energy annually?

• John's refrigerator

• Mary's refrigerator

John and Sarah decide to have a quick meal at Burger King. They order the following items:

 

Whopper $4.99

French Fries $2.79

Sundae $1.99

Soft Serve Cone $1.49

 

What is the total cost of their meal?

At the local fuel station, the diesel prices (cents per litre) are as follows:

Type of Diesel / Price (cents)

Regular / 220.5

Premium / 205.7

Ultra / 215.8

Emily and John are going on a camping trip and they decide to fill their RV with Premium diesel. The RV's tank capacity is 5L. How much did they pay to fill up the tank in cents?

 

John, Sarah, and Mike are on a vacation. They stop at a gas station where the prices (cents per gallon) are as follows:

Type of Gas / Price (cents)

Regular / 250.5

Premium / 230.4

Diesel / 220.3

Mike, who is driving, decides to fill the car with Premium gas. The car's tank capacity is 5 gallons. How much did Mike pay to fill up the tank in dollars, rounded to the nearest cent.

John, a professional plumber, went to the local tool shop and his purchases totaled to $625.75. He bought a Pipe Wrench for $55.75. If he didn’t buy the pipe wrench, what would have his shopping amounted to?