Be able to:
▪ Use specified mental calculation and estimation techniques with addition,
subtraction , multiplication, and division problems . Demonstrate and explain your
procedure.
▪ Explain the difference between computational estimation and mental
computation.
▪ Use the expanded and/or standard algorithm to demonstrate addition,
subtraction, and/or multiplication.
▪ Use base-ten blocks and the sharing interpretation to model (diagrams and
explanations) addition , subtraction, multiplication, and /or division.
▪ Find all the factors of a number .
▪ Use/ explain the divisibility rules to determine if one number is divisible by
another.
▪ Determine/explain whether a number is abundant , deficient, or perfect .
▪ Determine/explain whether two numbers are amicable numbers.
▪ Define and give examples of:
o Prime numbers
o Composite numbers
o Relatively prime numbers
▪ Identify numbers as prime or composite.
▪ Give the prime factorization using factor trees and stacked division.
▪ Find the GCF using the Euclidean algorithm. Be able to explain procedure.
▪ Find the LCM and GCF using the prime factorization. Be able to explain
procedure.
▪ Solve application problems involving the LCM and/or GCF. Be able to explain
why the LCM or GCF is used and be able to explain your procedure.
