Number Bonds (2)

Designed to help children to visualise and understand number bonds to 20, 50 and 100. Numbers are represented on a number line and using base-ten blocks.

For more addition and subtraction resources click here.

This game is now part of the 'Calculations' collection, which includes the following 17 games and resources: Column Addition, Expanded Addition, Expanded Addition - Place Value Counters, Number Bonds(2), Addition - Digit Drag, Missing Symbols, Column Subtraction, Column Subtraction using Place Value Counters, Counting on to find difference on a beadstring, Multiplication Grid Method, Multiplication Written Method, Ratio and Scaling Numbers, Representing Multiplication, Division by Chunking Up, Division by Chunking Down, Formal Written Division - Round Up or Down?, Short Division Writen Formal Method.

The Calculations app is available on Google Play and the App Store.

Scan to open this game on a mobile device. Right-click to copy and paste it onto a homework sheet.

Game Objectives

New Maths Curriculum:

Year 2: Recall and use addition and subtraction facts to 20 fluently, and derive and use related facts up to 100

Year 2: Add and subtract numbers using concrete objects, pictorial representations, and mentally, including: a two-digit number and ones; a two-digit number and tens; two two-digit numbers;adding three one-digit numbers

Year 3: Add and subtract numbers mentally, including: a three-digit number and ones; a three-digit number and tens; a three-digit number and hundreds

Primary Framework:

Year 2 Block A:

Add or subtract mentally a one-digit number or a multiple of 10 to or from any two-digit number; use practical and informal written methods to add and subtract two-digit numbers

Year 3 Block A:

Add or subtract mentally combinations of one-digit and two-digit numbers

Year 4 Block A:

Add or subtract mentally pairs of two-digit whole numbers