Let one white tile represent +1 and one black tile represent -1.
You have 3 white tiles. What tiles do you need to model 0?
3 black tiles
100
Use coloured tiles to find the sum.
(+3) + (+2)
What is +5
100
Use a number line to add.
(+14) + (+11)
What is +25
100
Let one white tile represent +1 and one black tile represent -1.
Use tiles to subtract.
(+12) - (-5)
What is +17
100
Rewrite using addition.
(+7) - (-6)
What is 7 + 6 = 13?
200
Let one white tile represent +1 and one black tile represent –1.
You have 12 white tiles and 12 black tiles.
What is the least number of tiles you can remove to model +5?
What is 5 black tiles
200
Use coloured tiles to find the sum.
(–9) + (–3)
What is -12
200
Use a number line to add (-3)+(-19)
What is -22
200
Use tiles to subtract.
(+5) - (+7)
What is -2?
200
Use a number line to subtract (-8)-(+7)
What is -15?
300
Let one white tile represent +1 and one black tile represent –1.
You have 18 white tiles and 26 black tiles.
What is the greatest integer you can make using 20 tiles? What tiles would you use?
What is 18 white and 2 black
300
Use coloured tiles to find the sum.
(–12) + (+5)
What is +7
300
The temperature is 15°C and drops 8°C.
Write an ADDITION equation to calculate the final temperature. What is the final temperature?
What is 15+ (-8) = 7
300
Bryan gets on an elevator at the 35th floor. The elevator goes down 17 floors then up 9 floors.
At what floor does it finally stop?
What is the 27th floor?
300
Determine the increase from –49 to –35
What is +15?
400
Let one white tile represent +1 and one black tile represent -1.
You have 9 white tiles and 11 black tiles. What additional tiles do you need to model -9?
What is 7 black tiles?
400
Use coloured tiles to find the sum.
(+5) + (+4) + (–4)
What is +5
400
In a golf tournament, Joey got a score of +11 and Melissa got a score of –5.
What was their combined score?
What is +6
400
Use tiles to subtract.
(–8) - (+6)
What is -14?
400
Use a number line to evaluate.
(+12) – (+8) – (+9)
What is -5?
500
Let one white tile represent +1 and one black tile represent –1.
You have 16 black tiles. How many tiles would you exchange for white tiles to model –10?
What is 3 black tiles?
500
Name all pairs of integers that have a sum of -3.
+5, +6, +7, +9, -8, -9, -10, -12
What is (+5,-8) -(9,+6) (-10, 7), (+9,+12)
500
The price of a stock was $38 on Monday morning. The value of the stock went up $3, down $5, down $1, up $2, and up $4 during the 5 days of the week.
a) Use a number line to track the value of the stock.
b) Find the value of the stock at the end of the week.
What is 41?
500
Write the next two terms in the pattern.
+16, +9, +2, –5, ...