Estimation & Computation
Estimation
Types
of
Estimation
To Estimate
a Quantity
To Estimate
a Measurement
(length, area, volume)
To Estimate
an Answer
(sum, difference, product, quotient)
Techniques
for
Estimating
Clustering
Front End Adjusting
Rounding
Sustitue a Compatible Number
Algorithms
Division
Multiplication
Lattice Method
Clustering Method
Addition
Model Base 10 Blocks
Standard Algorithm
for Addition
Expanded Algorithm
for Addition
Subtraction
Counting Up
Model Base 10 Blocks
Mental Computation
Techniques
for
Mental Computation
Addition
Break Apart
Count On
Subtraction
Count Back
Multiplication
Choose Compatibel Numbers