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Numeracy
Today we are revising our addition and subtraction skills.
REMEMBER We have strategies that can help us.
Partitioning
Break the numbers into chunks that are more helpful
23 + 42 =
20 + 3 + 40 + 2 = 65 adding the 20 and 40, then the 3 and 2
87 - 24 =
87 - 20 - 4 = 63 taking 20, leaves 67
then taking 4, leaves 63
Using the 100 array
Counting backwards and forwards in ones (across the array)
Counting backwards and forwards in tens (up and down the array)
Follow the Stars to find your task today.
You do not need to print these pages. Simply write your answers on a page.
Use the link to find a copy of the 100 array if you need it.