How To
Which strategy is used after all the other strategies have become too easy?
Algorithm
What is the formula to find the area of a rectangle?
A = L x W
what is the formula for perimeter?
P = L + L + W + W or
P = 2L + 2W
What is the product of 9 x 8
72
The answer to a division problem is called a...?
quotient
This strategy adds to one factor and divides the other factor
Doubling & Halving
What is the formula to find the area of a square?
A = 4s
Find the perimeter of a rectangle with the measurements 12 x 16
56
The zero property says what?
Any number multiplied by zero equals zero
Find the quotient of 81/9?
9
This strategy is similar to the Agorithm, but you expand each number before you multiply
Partial Product
Find the area of a rectangle that has a length of 4 feet x 25 feet
100 square feet
A rectangle has a area of 56, what is the perimeter?
30
The identity property says what?
Any number multiplied by one is that number
find the missing measurement of a rectangle with an area 3,285, if the length is 73
45
This strategy breaks one factor down and uses the 2nd factor to multiply the new factors
Distibutive
Find the area of a square with a side length of 15 centimeters
225 square centimeters
A square has a measurement of 40 inches. What is the perimeter of the square?
160
what is the product of 38 x 64
2,432
Find the missing measurement of a rectangle with the area of 8,360 and one side has a measurement of 95
88
This strategy adds to one of the factors, then subtracts was added to get the original factor
Over Compensation
Find the area of a rectangle that is 31 x 12 centimeters
372 square centimeters
a rectangle has a perimeter of 278 square inches. The width is 93 inches. What is the length?
46 each or 92 both
What is the product of 187 x 9?
1,683
Find the missing measurement of a rectangle with a width of 43 and an area of 5,418
126