Bridge 100 by adding in multiples of 10
Lesson 10 / 10
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Lesson outcome
I can use number facts to 20 to add multiples of 10 and bridge 100
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The language of unitising helps us to use number facts to 20 to add multiples of 10 crossing the hundreds.
Crossing the tens boundary helps us to cross the 100s boundary if we think in tens.
Partitioning an addend helps us to cross the 100 boundary when adding.
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