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Bridging 100: counting on and back in 10s, adding/subtracting multiples of 10

Year 3 • Maths
We've put the lessons in order helping you build on what you've learned before so it’s best to start with the first lesson of a unit.

Choose a lesson (5)

1
Count across and on from 100
2
Represent a 3-digit number up to 199 in different ways
3
Bridge 100 by adding or subtracting a single-digit number
4
Find 10 more or 10 less than a given number
5
Cross the hundreds boundary when adding and subtracting any 2-digit multiple of 10