In this Year 3 Find 1, 10 or 100 More or Less lesson, children find 10 or 100 more or less than a given number.
The Year 3 Find 1, 10 or 100 More or Less PowerPoint guides both teachers and children through the lesson, including use of the varied fluency, reasoning and problem solving, deeper reasoning and scaffolded resources. Key learning information about this step:
Key Vocabulary
place value chart: Used to identify the value of the digits that make up a number.
place value counters: A physical resource which represents numbers. They are usually in different colours and have different numbers written on them, to represent ‘ones’, ‘tens’, ‘hundreds’ etc.
placeholder: 0 is used to hold a place in a number and maintain its place value.
exchange: When a digit is taken from one place value column and placed in another.
Varied Fluency
Knowledge Organiser
• Designed to support all children via key information and examples.
Scaffolded Examples
• Guided practice finding 10 more and 10 less on a place value chart.
Support
• Q1: Find 10 more and 10 less on a place value chart; hundreds and ones digits given.
• Q2: Complete a table to find 100 less; tens and ones digits given; Base 10 shown.
• Q3: Find a missing number; no exchange needed.
Core
• Q1: Find 10 more and 10 less on a place value chart.
• Q2: Complete a table to find 100 less and 100 more; Base 10 shown.
• Q3: Find a missing number; an exchange is needed.
Stretch
• Q1: Find 10 more and 10 less; exchanging across boundaries.
• Q2: Complete a table to find 100 less and 100 more; no Base 10.
• Q3: Find a missing number; blank place value chart; an exchange is needed.
Reasoning and Problem Solving
Support
• Q1: Reasoning - explain whether a missing number has been found correctly; the number of tens is given; no exchange needed.
• Q2: Reasoning - explain whether a statement about which digit changes is correct; the number line is given.
• Q3: Problem Solving - find three 3-digit numbers with a given hundreds and tens digit, then find 10 or 100 more than each.
Core
• Q1: Reasoning - explain whether a missing number has been found correctly; no exchange needed.
• Q2: Reasoning - explain whether a statement about which digit changes is correct; the calculation is not given.
• Q3: Problem Solving - find three 3-digit numbers that fit two conditions about 10 or 100 more or less.
Stretch
• Q1: Reasoning - explain whether a missing number has been found correctly; an exchange across a boundary is needed.
• Q2: Reasoning - explain whether a statement about a boundary crossing is correct; the calculation is not given.
• Q3: Problem Solving - find three 3-digit numbers that fit three conditions, including a boundary crossing.
Deeper Reasoning
The questions in this set focus on using the clues to identify the numbers to deepen understanding in finding 10 or 100 more or less than a given number.
This lesson is designed to align to White Rose Maths version 3. Classroom Secrets Limited is not affiliated with, endorsed by, or in any way connected to White Rose Education Limited. Our products are original to Classroom Secrets Limited and any reference to White Rose Maths is solely for the purpose of indicating compatibility and does not imply any association with White Rose Education.
