Partition 2-digit numbers in different ways
I can partition two-digit numbers in a range of ways.
Partition 2-digit numbers in different ways
I can partition two-digit numbers in a range of ways.
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Lesson details
Key learning points
- Two-digit numbers can be partitioned into two or more parts.
- Known facts can be used to help partition a two-digit number into a multiple of ten and another part.
- The patterns in the tens can help to predict new equations.
- Known facts can be used to help partition both the tens and the ones in a two-digit number.
Keywords
Partition - To split a whole up into parts.
Common misconception
Children may think two-digit numbers can only be partitioned into tens and ones.
Use practical equipment to manipulate tens and ones on part-part-whole models to help children to understand the many ways that a number can be partitioned.
To help you plan your year 2 maths lesson on: Partition 2-digit numbers in different ways, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 2 maths lesson on: Partition 2-digit numbers in different ways, download all teaching resources for free and adapt to suit your pupils' needs.
The starter quiz will activate and check your pupils' prior knowledge, with versions available both with and without answers in PDF format.
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Explore more key stage 1 maths lessons from the Adding and subtracting ones and tens to and from 2-digit numbers unit, dive into the full primary maths curriculum, or learn more about lesson planning.
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Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.79 − 40 = ? How many tens is being subtracted from 79 in this equation? tens
Q2.Look at the image. Which equation does it represent?
Q3.Match the known facts that will help to subtract multiples of 10
7 tens − 3 tens = 4 tens
60 − 40 = 20
80 − 50 = 30
Q4.What could we do to help solve this equation? 72 − 40 =
Q5.Which of these equations will have the same sum as 37 + 50?
Q6.71 − 50 =
Assessment exit quiz
6 Questions
Q1.Match each number to the number of tens it is composed of.
4 tens
7 tens
5 tens
8 tens
6 tens
Q2.52 can be partitioned in different ways. Match the multiple of 10 with another number that sums to 52
2
12
22
32
42
Q3.Which equation will come next in the pattern?
