Use knowledge of doubles to calculate near-doubles

Maths

In this unit pupils will explain that addition is commutative. They will find pairs of numbers to 10 and add or subtract 1 from any number.  In the future unit pupils will demonstrate their fluency of addition and subtraction within ten. They will practise addition and subtraction strategies.

In prior learning, pupils will have learnt to count confidently and have developed a deep understanding of the numbers to 10, the relationships between them and the patterns within those numbers. In this unit pupils will explain that addition is commutative. They will find pairs of numbers that total 10 and add or subtract 1 to and from any number to 10.

Addition and subtraction facts within 10

What near double is the representation showing?

Which of these double facts would help to solve this near-double problem?   2 + 3 =

Finish the sentence. Near doubles always have {{}}

What is the missing number in this bar model?

Jacob ran 4 laps of the track. Then he ran another 3 laps. How many laps did he run in total?

When we add two equal addends, we are {{}}

What number would complete this bar model?

What is the missing number?   Half of {{ }} is 3

Sam is 8 years old. She is double the age of her brother. How old is her brother?

This lesson will soon be taken down.

Use knowledge of doubles to calculate near-doubles

Lesson outcome