 # Welcome to Tackling Add & Subtract

## The exciting way to master mental maths!

Tackling Add & Subtract uses exactly the same principles and approach as Tackling Tables – this time to help children develop confidence and fluency in mental addition and subtraction.

Using the following National Curriculum expectations, it uses colour coded cards to help children develop a range of skills. Each phase builds on the previous one to extend their thinking.

## Purple Phase will develop Addition and Subtraction fluency in:

 Using zero 7 + 0 = 7 7 – 0 = 7 Single digits within 10 6 + 2 = 8 8 – 6 = 2 Number bonds to 10 1 + 9 = 10 10 – 1 = 9 Multiples of 10 with a single-digit 40 +7 = 47 47 – 7 = 40 Doubles within 20 6 + 6 = 12 12 – 6 = 6 Near doubles within 20 8 + 9 = 17 17 – 9 = 8 Single digits to bridge 10 within 20 9 + 6 = 15 15 – 6 = 9

## Yellow Phase – Building on Purple Phase:

 Number bonds to 20 14 + 6 = 20 20 – 6 = 14 Multiples of 10 to make number bonds to 100 20 + 80 = 100 100 – 20 =80 Multiples of 10 within 100 40 + 50 = 90 90 – 40 = 50 Double digit and Single digit: Without bridging a multiple of 10 42 + 7 = 49 49 – 7 = 42 To make a multiple of 10 21 + 9 = 30 30 – 21 = 9 To bridge a multiple of 10 86 + 7 = 93 93 – 86 = 7 Multiple of 10 and a double-digit within 100 30 + 18 = 48 48 -18 = 30 Multiples of 10 bridging 100 120 + 90 = 210 210 – 120 = 90 Adjusting using 9 & 11 17 + 9 = 26 26 – 9 = 17

## Orange Phase – Building on Yellow Phase:

 Number bonds to 100 24 + 76 = 100 100 – 76 = 24 Double digit and double digit: Without bridging a multiple of 10 28 + 41 = 69 69 – 41 = 28 To make a multiple of 10 33 + 47 = 80 80 – 47 = 33 To bridge a multiple of 10 55 + 18 = 73 73 – 55 = 18 Advanced adjusting 24 + 19 = 43 43 -19 = 24 Decimal numbers 3.4 + 2.7 = 6.1 6.1 – 2.7 = 3.4 Multiple of 10 and a double-digit within 100 30 + 18 = 48 48 -18 = 30 Negative numbers (school scheme) 7 – 8 = -1 -8 + 7 = -1

## Tackling Add & Subtract Student Pack

Tackling Add & Subtract aims to help all children develop fluency in mental addition and subtraction. By working their way through the 3 colour coded phases children will master number bonds to 10 , 20 and 100 and learn how to apply this knowledge to increasingly difficult calculations

## How can you use Tackling Add & Subtract in your school?

Option 1 : Classroom Box £79.95

• 10 sets of colour coded cards (each set contains 42 Purple; 42 Yellow; 35 Orange) – children play in small groups or with a teacher/TA
• Colour coded Phase Overview objectives – based on National Curriculum expectations
• Colour coded mixed Addition and Subtraction 100 Question "Beat Your Best" tests and answers to monitor progress

Schools - To pay by invoice:
Contact Dennis & Margi Brown Tel 01553 670438
Mob 07415 225542

Option 2 – Annual Paper - based licence (PDF format) £175

• Comprehensive, easy - to - implement whole school scheme of work
• All testing and associated recognition material available as convenient printable PDFs
• Colour coded Phase Overview objectives – based on National Curriculum expectations
• Colour coded mixed Addition and Subtraction 100 Question "Beat Your Best" tests and answers to monitor progress
• Student monitoring sheets to enable them to track progress
• 9 Intelligent Practice tests including missing numbers, applied number bonds, decimals and negative numbers
• A free Classroom Box - 10 sets of colour coded cards (each set contains 42 Purple; 42 Yellow; 35 Orange) – children play in small groups or with a teacher/teaching assistant (Worth £79.95)
• Free Student Pack (Worth £14.95)
• Free Button Badge starter pack
• Parents can purchase Student Packs at the discounted price(£9.50 instead of £14.95)
• The option to purchase extra classroom boxes at a discounted rate of £65.00

To pay by invoice:
Contact Dennis & Margi Brown Tel 01553 670438
Mob 07415 225542