This worksheet is designed to get learners to think about how they can use the associative and commutative properties of addition to make calculations easier.
Section A leads them through the process of regrouping a sum so that they do not just work from left to right but add later parts of a calculation while still obeying the order of operations.
Section B then shows them that reordering numbers in a sum can help group number bonds together to simplify a calculation.
Sections C and D then introduce the process of partitioning numbers to form other number bonds.
Section E provides some practice questions for learners to use their own method and section F gives some worded problems to solve.