Adding two numbers with one exchange Foundation

Building on from the previous worksheet, children add two 4-digit

numbers with one exchange in any column.

The numbers can be made using place value counters in a place value chart, alongside the formal written method.

When discussing where to start an addition, it

is important to use language such as begin from the “smallest

value column” rather than the “ones column” to avoid any

misconceptions when decimals are introduced later in the year.

After each column is added, ask,

“Do you have enough ones/ tens/hundreds to make an exchange?"

This question will be an important one in this worksheet , as the children do not know which column will be the one where an exchange is needed.