The Year 4 Round to the Nearest 10 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
rounding: When a number is replaced with an approximated value. Numbers are often rounded to the nearest 10, 100 or 1,000.
multiple: A product of one number multiplied by another number. For example: multiples of 10 are the products of numbers multiplied by 10.
number lines: A horizontal or vertical line which has numbers placed at equal points. Number lines can be used to show either positive or negative numbers. Most number lines begin at 0.
midpoint: The point on a number line that is exactly halfway between the start and end values.
Varied Fluency
Knowledge Organiser
• Designed to support all children via key information and examples.
For the purple sections of the four levels, copy and paste these from the first sheet of the varied fluency resource.
Scaffolded Examples
Rounding on a number line, using the ones digit and three-digit numbers.
Support
• Q1: rounding a two-digit number on a number line with every increment labelled.
• Q2: rounding a two-digit number using the ones digit, with the multiples given.
• Q3: rounding a three-digit number on a number line, with the multiples given.
Core
• Q1: rounding a two-digit number on a number line with the midpoint labelled.
• Q2: rounding a two-digit number using the ones digit.
• Q3: rounding a three-digit number on a number line with the midpoint labelled.
Stretch
• Q1: rounding a two-digit number with only the end values shown on the number line.
• Q2: creating a set of two-digit numbers that meet the given criteria.
• Q3: rounding a three-digit number with no tens and only the end values given
Reasoning and Problem Solving
Support
• Q1: Reasoning - explaining whether a character has rounded a two-digit number correctly, with the two multiples of 10 given.
• Q2: Reasoning - finding the incorrect answer in a table of three roundings and explaining the mistake.
• Q3: Problem Solving - writing their own numbers into a sorting table by which multiple of 10 they round to and whether they are odd or even, with one section given.
Core
• Q1: Reasoning - explaining whether a character has rounded a three-digit number correctly.
• Q2: Reasoning - finding the incorrect answer in a table of four roundings and explaining the mistake.
• Q3: Problem Solving - writing their own numbers into a sorting table by rounding and parity, where each number must use three different digits.
Stretch
• Q1: Reasoning - explaining whether a character has rounded a three-digit number with no tens correctly.
• Q2: Reasoning - finding the incorrect answer in a table that includes multiples of10, then correcting it.
• Q3: Problem Solving - writing their own numbers into a sorting table across a hundred boundary, with no repeated digits and no digit 9.
Deeper Reasoning
The questions in this set focus on problem solving using digit cards and a given total to deepen understanding in rounding 3-digit numbers to the nearest 10.
