TheLearnDen

Year 6 · Maths

Perform Mental Calculations

Year 6 learners practise mental maths strategies for addition and subtraction.

The activities include Add and Subtract Numbers Mentally, Complete Number Grids Using Multiplication Facts, Find the Halfway Number, and related practice. The checked support below includes video, lesson, teaching, worksheet. Open a resource in its provider's website and choose the format that best helps the learner explain the idea independently.

Activities covered

  • Add and Subtract Numbers Mentally
  • Complete Number Grids Using Multiplication Facts
  • Find the Halfway Number
  • Know How to Add Consecutive Numbers
  • Practise Finding Halfway Numbers

Checked learning resources

  • How To Use a 12 x 12 Multiplication Grid For Multiplication & Division

    YouTube — The Maths Guy! · Video · Opens on the provider website

    Caption-verified Year 6 and KS2 maths video teaches completing multiplication grids using multiplication facts. It identifies the top row and side column as grid headers, models finding products where a row and column me

  • Estimate and identify numbers on number lines

    Oak National Academy · Video · Opens on the provider website

    Year 6 lesson, worksheet and quizzes identify intervals and halfway points on number lines up to ten million.

  • PlanIt Maths Year 6 Mental Calculations: Guided SATs Questions

    Twinkl · Lesson · Account may be required

    Teacher-led Year 6 lesson models mental calculation strategies before pupils apply them independently to differentiated questions.

  • Multiplication Square 12 by 12: How to Use the Grid

    Twinkl · Teaching · Account may be required

    Twinkl KS2 Years 3–6 teaching page explains how to use multiplication grids: match factors in the top row and side column, follow both lines to their intersection and read the product. It directly supports completing the

  • Times Table Grid to 12×12

    Math Salamanders · Worksheet · Opens on the provider website

    Free printable completed and blank 12×12 multiplication grids for practising row-and-column multiplication facts and checking products; the grid also supports using inverse division to identify a missing factor.

  • Missing Number Multiplication Square Activity Sheet

    Twinkl · Worksheet · Account may be required

    KS2 practice contains six missing-number multiplication-grid variations for pupils to complete using multiplication facts up to 12×12.

  • Estimate and identify numbers on number lines worksheet and quiz downloads

    Oak National Academy · Interactive · Opens on the provider website

    Year 6 downloadable worksheet and starter and exit quizzes identify intervals and halfway points on number lines up to ten million.

  • Halfway Numbers Teaching and Practice Activity

    Twinkl · Lesson · Account may be required

    KS2 teaching prompts and practice questions model methods for finding the number exactly halfway between two values, including finding the difference, halving it and adjusting from an endpoint.