What's included in the Subtract Two 2-Digit Numbers (across a 10) Reasoning and Problem Solving resource and why is it useful?

Year 2 Subtract Two 2-Digit Numbers (across a 10) Reasoning and Problem Solving is a set of 3 worksheets designed to be used during the independent reasoning and problem solving section of your maths lesson. Once children are secure in varied fluency, they are ready for these worksheets.

Each set has been carefully designed to help you meet each child where they are at to ensure progress for every child, not just the average child. The content includes 3 levels of content (Support, Core and Stretch) for Subtract Two 2-Digit Numbers (across a 10) covering adding and subtracting 2-digit numbers using concrete objects and pictorial representations.

Support

• Q1: Reasoning – decide whether a character needs to exchange 1 ten, using Base 10 in a place value chart.

• Q2: Reasoning – decide which of two children has subtracted correctly after the exchange has been shown.

• Q3: Problem Solving – find subtractions from a given number that need an exchange, with the tens digit given.

Core

• Q1: Reasoning – decide whether a character has subtracted correctly after exchanging 1 ten.

• Q2: Reasoning – decide which of two children has found the difference correctly using a bar model.

• Q3: Problem Solving – find pairs of 2-digit numbers with a given difference that need an exchange.

Stretch

• Q1: Reasoning – test a general statement about exchanging, or check a missing digit.

• Q2: Reasoning – decide which of two children is correct about a missing digit or a missing part.

• Q3: Problem Solving – use four digit cards to make subtractions that need an exchange.

How do our reasoning and problem solving resources work?

Our reasoning and problem solving resources are not just about differentiation, but differentiation in an adaptive way. They work best alongside our teaching PowerPoints which walk you through the whole lesson along with other lesson resources that you can find on our Subtract Two 2-Digit Numbers (across a 10) lesson page.

• After completing the Varied Fluency worksheet, children are now ready for their Reasoning and Problem Solving work.

• Most children will use the Core sheet for their Reasoning and Problem Solving practice.

• Some children may need the Support sheet. This has been included to give specific children the additional support required to develop their reasoning and problem solving skills and access the core content.

• Some children may need additional challenge; the Stretch sheet will deepen their understanding of the core content.

• Within the Teaching PowerPoint, a question similar to what is presented in question 1 on these sheets is given, alongside sentence stems. This can be used to lead discussion on how to solve question 1 and give all children ideas on what reasoning can be used, via oracy, to tackle the question.

Adaptive Maths Resources are not a separate lower-attainment route. They provide temporary and responsive support to help pupils access the same intended learning.

This resource 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.