1. Whole Numbers

1.01 Estimation

1.03 The four operations

1.04 Order of operations with whole numbers

1.05 Using technology for operations with whole numbers

1.06 Writing mathematical statements with whole numbers

1.07 Solving contextual problems with whole numbers

1.08 Number operation properties

1.09 Square roots and perfect squares

1.10 Powers of whole numbers

1.11 Factors and multiples

1.12 Prime factorisations

1.13 Factor tiles (Investigation)

1.14 HCF and LCM

Middle Years

1.01 Estimation

Interactive practice questions

Estimate $99+61$99+61.

a

Round both numbers to the nearest $10$10.

$\editable{}+\editable{}$+

b

Calculate the estimate.

Easy

< 1min

Estimate $63-22$63−22.

Easy

< 1min

Estimate $898-132$898−132.

Easy

< 1min

Estimate $765+171$765+171.

Easy

< 1min

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