82 __ 28 - WHAT SYMBOL DO I USE AFTER THE NUMBER 82? < or > ?
82 > 28
100
Use a number line to find the sum of (-7) + (+9). Explain your steps and provide the answer.
Create a number line going from -9 to +9 (left to right). Second step - Draw a red line going from 0 to -7. Third step - Draw a blue line, above the red line, going to the right by +9, ending at +2.
100
Find the result of (-5) - (-3). Use integer chips, if necessary. Show your work!
Write an integer expression for the changes in kg over a period of six weeks, with the following:
-6, +2, +3, -4, -7, -4.
Provide the answer to the expression, as well.
(-6) + (+2) + (+3) + (-4) + (-7) + (-4)
= -16kg
100
When subtracting, the following rules apply:
A negative & a negative =
A negative & a positive =
A positive & a positive =
When subtracting, the following rules apply:
A negative & a negative = positive
A negative & a positive = negative
A positive & a positive = positive
200
PLACE THE FOLLOWING NUMBERS IN ORDER, FROM LEAST TO GREATEST.
-10, -8, 8, -22, 30, 0, 4, 19
-22, -10, -8, 0, 4, 8, 19, 30
200
Ashraf has $150 in his bank account. He owes $45 to his sister, $25 to his brother, and $70 to his friend. How much money does he have to save, if he needs $400 to buy a bike?
(150) +(-45) + (-25) + (-70) = $10
Therefore, $400- $10 = $390 is the amount he must save to buy a bike.
200
What is
(+6) - (-2)
(+6) + (+2)
=+8
*Neg & neg becomes a POSITIVE
Find the result. Use integer chips, if necessary. Show your steps!
(+6) - (-2)
200
Max played three round of golf in the past tournament. He shot -4, +1, and -10. What was his final score at the end of the tournament?
13 under par (-13) was his final score.
(-4) + (+1) + (-10)
=(-3) + (-10)
= -13
200
Have a look at following the expression (+5) - (-6). If you are asked to solve the expression using integer chips, explain your every step.
i) Create 5 red integer chips
ii) Try and take away 6 blue chips. You realize you do not have them.
iii) You must create 6 blue chips (negatives), as well as 6 more red chips (positives) - zero principal rule!
iv) You can now throw away the 6 negative chips.
v) count the remaining chips
Answer: +11
300
Two chips of opposite colours cancel each other out. Each pair of cancelled chips equals zero. This is called ______.
The zero principal rule
300
What is the missing integer in the following pattern?
-18, -9, __, 9, 18, 27, 36
0. The pattern is increasing by +9, going from left to right.
300
Find each difference. Use integer chips or a number line, if necessary. Show your work!
(+15) - (+25)
When using integer chips to model subtraction of integers, you may need to ____ extra chips.
extra
400
What integer sum is modelled if you have 6 red chips and 2 blue chips? Provide the answer, as well.
(+6) + (-2) = +4
400
What is today's temperature if it rose by 6 degrees Celsius ? Yesterday registered -8 degrees Celsius. Provide the sum and the answer.
(-8) + (+6) = -2. Today's temperature is -2.
400
Find the missing integer in each.
-8 - __ = +2
AND
__ - (-1) = = -4
-10 AND -5
400
Evaluate 727 - 182 - (282)
827
400
Subtracting Integers - On a number line, the difference is the distance and direction from the _______ integer to the ______.
second, first
500
Keith earned $7, but owed $10 to his friend. Write an integer sum to represent each situation and provide the answer.
(+7) + (-10) = -3
500
What are the missing integers in the following pattern?
-14, -10, -5, +1, __, 16, 25, __
7 & 35 - the pattern is as follows: 4, 5, 6, 7, 8, 9, 10...
500
Evaluate. Show your work!
(-5) - (-2) - (+8)
(-5) - (-2) - (+8)
(-5) + (+2) - (+8)
(-3) - (+8)
(-3) + (-8)
= -11
Begin by solving the (-5) - (-2). Once you find that answer, you can deal with the third number in the equation.
500
Find the missing number. Explain your strategy.
__ - 10 + 15 = 0
-5
500
List the different ways to solve integer expressions
- Integers on a NUMBER LINE
- Integer CHIPS
- Using a CALCULATOR
- Doing so MENTALLY