Integers

Magic Squares

9

4 3 8

Magic Squares

2 7 6

9 5 1

4 3 8

Magic Squares

4 9 27

5

8 6

Magic Squares

4 9 27

3 5 7

8 1 6

Magic Squares

Represent integers with tiles

Represent integers with drawings

Solve problems

Solve integer addition with drawings

Use math symbols correctly

(shaded= neg. & unshaded=pos.)

1. Write the integer modeled.

2. You have 3 shaded and 4 unshaded tiles. What integer is represented.

3. You have 3 shaded and 6 unshaded tiles. What is the least number tiles you need to add to represent -2? What type?

4. You have 7 shaded and 2 unshaded tiles. What is the least number of tiles you need to add to represent -4? What type?

5. What sum is modeled by 8 shaded and 1 unshaded tile?

6. How many zero pairs are modeled below?

7. How would you need to shade the circles below to represent -5?

8. Model “0” 3 different ways.

Adding Integers

Add using tiles and drawings

Add using symbols (numbers, +, brackets)

Write the addition equation. (Copy & do in coil nb)

1.

2.

3.

4.

5.

Write the addition equation. (ANSWERS)

1. (+5) + (-2) = (+3)

2. (+2) + (-1) = (+1)

3. (+1) + (-4) = (-3)

4. (+3) + (-1) = (+2)

5. (+4) + (-2) = (+2)

Draw each addition equation. (copy & do in coil nb)

1. ( +1 ) + (-2) =

2. ( +2 ) + (+3) =

3. (-3 ) + (-3) =

4. ( -1 ) + (+6) =

5. ( +2 ) + (0) =

Draw each addition equation. (ANSWERS)

1. ( +1 ) + (-2) =

2. ( +2 ) + (+3) =

3. (-3 ) + (-3) =

4. ( -1 ) + (+6) =

5. ( +2 ) + (0) =

Assignment:

Page 55, # 5, 6

Page 58 # 4, 5, 6

If finished, start homework or ask for a hand out.