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Middle School Math
Math

 

Name _____________________________
Date ___________________
Whole Numbers
Complete.
1.   Some animal heads were stored at the veterinary office in a freezer. They were to be tested to see if the animals had rabies. If they had 12 specimens and could test one every half-day (a day being a workday of about 8 hours), how many days would it take to test them all?

2.   * This is a pre-made sheet.
Use the link at the top of the page for a printable page.

Complete.
3.   If a scale consists of the whole numbers from 1 to 13, what is the sum of the numbers that make up the scale?

4.   Because of sea floor spreading, the Atlantic Ocean is getting wider at a rate of about one cm per year. At that rate of expansion, how much wider will the Atlantic be at the end of one-fourth of a century?


Complete.
5.   A pony in a pony ride takes 35 seconds to make one circuit around a circle. The circumference of the circle is 105 m. What is the average speed of the pony in meters per second?

6.   A motorized machine requires an input work of 3,500 joules to perform an output work of 2,700 joules. What is the efficiency of the machine? Round your answer to the nearest integer percent.


 

Key #2
Complete.
7.   Christina carefully monitored the temperature in a reaction flask as it was slowly heated in a heating blanket. The temperature rose 42 degrees in 6 minutes. What was the rate of temperature rise in degrees per minute?

8.   Mr. Bloop added 30 grams of salt to 37 grams of sugar and then added an amount of sand equal to the total mass of the salt and sugar he already had. Nobody knows why he did this—he just did it. What was the total mass of the mixture when he was finished?


Complete.
9.   The Bigtown Middle School baseball team has room for 20 players. Twelve have been chosen. If there were 35 players trying out for the team, how many of those remaining will not be chosen?

10.   Seventy-nine people are trying out for the football team. Forty-eight will be selected for further consideration. How many will not be selected for further consideration?


 


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Middle School Math
Math