Number 4.75

●     addition, multiplication and division of integers

●     representation of subtraction of integers through the use of a physical model, and of integer subtraction as an equivalent integer addition, and as the difference between integers


●     calculation of squares and cubes of rational numbers

●     mental computation of square roots of rational numbers associated with known perfect squares; for example,√(0.64) = 0.8 because 82 = 64; √(6.4) is not related to 8

●     use of technology to confirm the results of operations with squares and square roots