Add 3 numbers together using doubles and near doubles

Maths

In this unit pupils will be reviewing and securing previous knowledge of add 3 addends, understanding they can be added in any order, bridging through 10. In the future unit pupils will use known facts to find multiples of ten that compose 100  and use known facts to find complements to 100.

In the prior unit pupils learned to find 10 more or less than a 2-digit number. They added and subtracted 10 to/from a 2-digit number using number facts. In this unit pupils will be reviewing and securing previous knowledge of add 3 addends, understanding they can be added in any order, bridging through 10

Review strategies for adding and subtracting across 10

What is the sum of the dots on the three dice? 

The missing numbers both have the same value. What is that value? 

What is the total of the spots on the two dice? 

What is the missing number in this equation? 

Alex doubles a number and gets the answer 12. What number did he double? 

Izzy uses the same number twice to complete this equation. What number did she use? 

Which calculation gives the same answer as 6 + 7? 

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