Adding Rational Numbers
Subtracting Rational Numbers
Fractions and Decimals
Ordering Rational Numbers
Word Problems
100

determine the sum

9/2 +3/2

12/2

100

Determine the difference

-5.1 - 3.3

-8.4

100

Write two fractions that represent the same number

7/-9

-7/9, 14/-18

100

write an equal rational number on the board for the following number

3/2

1.5

100

When Tim leaves for work, the thermostat in his house reads 23°C, when he comes back from work the thermostat reads 18.4°C. What was the temperature change while Tim was at work?

-4.6°C

200

determine the sum

4/5 + (-1/3)

7/15

200

determine the difference

11/5 - (-2/5)

13/5

200

Write as a decimal

- 11/6

-1.8333...

200

which of these numbers is greater? explain your thinking

-5.666..., -5.6

-5.6 - closer to 0

200

Is the following statement correct? Why or why not?

"When I compare two numbers, the lesser number is closer to zero"

The statement is true only when both numbers are positive

between 1 and -100, 1 is closer to 0 than -100

300

estimate whether the sum is greater or less than 0. explain how you know. evaluate to verify.

12.94 + (-12.56)

greater

0.38

300

determine the difference

15/4 - 5/12

40/12 or 10/3 or 3 1/3

300

Write as a decimal

41/1000

0.041

300

Write three rational numbers between this pair of numbers

-5.6, -5,7

-5.63, -5.66, -5.68

300

On Christmas day, the average temperature was -15.4°C, the next day the average temperature had increased by 7.8°C. What was the temperature on the second day?

-7.6°C

400

determine the sum without using a calculator

82.0018 + 100.2

182.2018

400

Predict whether the answer is positive or negative, explain your thinking. calculate the answer to verify

1.32 - (-5.79)

positive

7.11

400

Which of the following is equivalent to 0.06?

6/5, 3/50, 3/10, 3/100

3/50

400

Order these numbers from least to greatest using a number line

1.2, 2.1, -2.01, -1.2, 1.222..., -1,22

-2.01, -1.22, -1.2, 1.2, 1.222..., 2.1

400

Kyle owes his father $35.75, he then borrows another $24.55 and the following day pays his father back $29.90

How much money does Kyle still owe his father?

$30.40

500

determine the missing number in this statement

? + 16.531 = 32.444

15.913

500

determine the missing number in this statement

? - 0.05 = (-2.08)

-2.03

500
Find ? in the following equation

23/20 = ?/160

After finishing, convert both answers into decimals. 

? = 184

both decimals equal 1.15

500

Order these numbers from least to greatest on a number line

0.3, -0.333..., 1/3, -0.3, 0.33, -3

-3, -0.333..., -0.3, 0.3, 0.33, 1/3

500

The lowest point on Hogwarts School grounds is 89.4m below sea level. The highest point is 7844.7m above sea level. How can you use rational numbers to find the distance between these two points? What is the distance between the two points?

Add them together

7934.1m

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