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 inter pretation to model (diagrams and
explanations) addition, subtraction, multiplication, and /or division.

▪ Find all the factors of a number .

▪ Use/explain the divisibility rules to de termine 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.