**Click** each link below to view **subtopics** for each Chapter.

1) Sum of consecutive numbers — Extension

2) Subtraction from a base (without borrowing) — Extension

2) Subtraction from a base (without borrowing) — Extension

1) Bar number — Extension

2) General subtraction without borrowing

2) General subtraction without borrowing

1) Doubling and halving

2) Multiplication from a base

2) Multiplication from a base

1) Multiplying (dividing) by 5, 25, 50

2) Multiplying by 11 (2 or more digits)

3) Multiplying by 101

2) Multiplying by 11 (2 or more digits)

3) Multiplying by 101

1) 2 by 2 digits

2) 3 by 3 digits

2) 3 by 3 digits

1) Short division

2) Divide by factors

2) Divide by factors

1) Special squaring

a) Squaring numbers near 50

b) Squaring numbers that end in 5

b) Squaring numbers that end in 5

2) General squaring

3) Square roots of perfect squares

1) Cube roots of perfect cubes

2) Cubes

2) Cubes

1) Compare and order fractions

2) Adding and subtracting fractions

2) Adding and subtracting fractions

1) Percentages

2) Estimation

2) Estimation