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Adding Integers with Tiles. Student Expectations: 7 th Grade: 7.1.2C Use models, such as concrete objects, pictorial models, and number lines, to add, subtract, multiply, and divide integers and connect the actions to algorithms. ADDING INTEGERS.

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adding integers with tiles
Adding Integers with Tiles

Student Expectations:

7th Grade:

7.1.2C Use models, such as concrete objects, pictorial models, and number lines, to add, subtract, multiply, and divide integers and connect the actions to algorithms.

adding integers
ADDING INTEGERS
  • We can model integer addition with tiles.
  • Represent -2 with the fewest number of tiles
  • Represent +5 with the fewest number of tiles.

The University of Texas at Dallas

adding integers1
ADDING INTEGERS
  • What number is represented by combining the 2 groups of tiles?
  • Write the number sentence that is illustrated.

-2 + +5 = +3

+3

The University of Texas at Dallas

adding integers2
ADDING INTEGERS
  • Use your red and yellow tiles to find each sum.

-2 + -3 = ?

ANSWER

= -5

+

-2 + -3 = -5

The University of Texas at Dallas

adding integers3
ADDING INTEGERS

-6 + +2 = ?

ANSWER

+

- 4

=

-6 + +2 = -4

-3 + +4 = ?

ANSWER

+1

=

+

-3 + +4 = +1

The University of Texas at Dallas

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