How to Solve a generic rectangle Problem – Level 1 : How to Solve a generic rectangle Problem – Level 1
Generic Rectangles : Generic Rectangles Level 1 – Basic 2x2
Level 2 – Basic 2x3
Level 3 - Fill in the Blanks
Level 4 – Mixed Numbers
Level 5 – Variables?
What is a generic rectangle? : What is a generic rectangle? Generic rectangles help us multiply complicated numbers by allowing us to calculate the area of a rectangle that we cut into sections.
We can cut generic rectangles into different pieces, but for these basic generic rectangles, we will use place value.
56 would become 50 + 6, and 79 would become 70 + 9.
Area of a rectangle is always base · height.
Always remember to write your answer as both a product and a sum.
Level 1 – When given the top and side… : Level 1 – When given the top and side… 600 100 120 20 30 20 4 5 Fill in each box. Multiply the base and height of each little box to get that box’s area.
2. Write the sum of the top as a factor of the product.
3. Write the sum of the left side as a factor of the product.
4. Add the inside boxes for the sum.
5. If possible, find the sum. * = + + + = 30 · 20 = 30 · 4 = 20 · 5 = 5· 4 = + 35 + 24 600 100 120 20 840
Pause Now for Level 1 Practice! – Don’t forget your number sentence! : Pause Now for Level 1 Practice! – Don’t forget your number sentence! #1 #2 #3 #4
Level 1 Practice Answers : Level 1 Practice Answers #1 #2 #3 #4 2800
120
350
+ 15
3285 1000
450
160
+ 72
1682 600
240
40
+ 16
896 2100
490
60
+ 14
2664