Page 45 - TB_6B
P. 45
Activity 1 Adding Integers
A yellow circle represents 1, and a red triangle represents 1.
Learn how to add integers.
Method 1 Use models. 23
23
Use yellow circles to represent 2 and 3. Use red triangles to represent 2 and 3.
Count the number of yellow circles. Count the number of red triangles.
2 3=5 2 3= 5
24 0 Use two yellow circles to represent 2, and use four red
0 triangles to represent 4.
A pair of a yellow circle( 1) and a red triangle( 1) equals 0.
Count the remaining shapes.
2 4= 2
1 . Add the integers using the method above.
a. 4 3 = 7 b. 2 4
c. 3 1=2 d. 3 6
0
34
A yellow circle represents 1, and a red triangle represents 1.
Learn how to add integers.
Method 1 Use models. 23
23
Use yellow circles to represent 2 and 3. Use red triangles to represent 2 and 3.
Count the number of yellow circles. Count the number of red triangles.
2 3=5 2 3= 5
24 0 Use two yellow circles to represent 2, and use four red
0 triangles to represent 4.
A pair of a yellow circle( 1) and a red triangle( 1) equals 0.
Count the remaining shapes.
2 4= 2
1 . Add the integers using the method above.
a. 4 3 = 7 b. 2 4
c. 3 1=2 d. 3 6
0
34
