Addition
Knowing 4 + 6 = 10 can help me with which harder math fact?
40 + 60 = 100
Knowing 5 - 3 = 2 can help me with what harder subtraction fact?
50 - 30 = 20
What body part is as wide as 1 centimeter?
Your pinky!
How is a 2D shape different than a 3D shape?
A 2D shape is flat and a 3D shape is not flat.
On your whiteboard draw an array with 3 rows of 4
****
****
****
What is the next friendly number after 85?
90
Count by 10s backwards from 100 to 0.
100, 90, 80, 70, 60, 50, 40, 30, 20, 10, 0
What body part is about 1 inch?
Your thumb nuckle to the tip of your thumb.
Name a 2D shape with 3 sides.
A triangle.
On your whiteboard draw an array with 2 columns of 5
**
**
**
**
**
On your whiteboard complete the following problem using the arrow way:
37--> 40
+3
37 --> 40
Solve 57 - 30 using the arrow way
-10 -10 -10
57-->47-->37-->27
Show with your arms how long 1 meter is?
Arms extended from left to right.
What are 2D shapes with 4 sides called?
Quadrilateral
What is the repeated addition sentence for this array:
****
****
4 + 4
On your whiteboard solve this problem using vertical form:
67+55 =
122
Solve 137 - 55 using vertical form.
137
- 55
------
82
What tool would you use to measure a bus?
A yard stick or a meter stick.
What is a 2D six sided shape called?
hexagon
What is the sum of 2 groups of 5
10
On your white board solve this problem using vertical form:
137 + 84
221
Solve 200 - 84 using vertical form.
200
-84
----
116
How many centimeters are in 1 meter?
100
Name 2 polygons.
triangle pentagon
quadrilateral hexagon
square rectangle
What is the sum of 5 groups of 5?
25