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### Add/subtract multiples of 10

**Day 1**

Children practise adding and subtracting multiples of 10 to/from 2-digit numbers using a 1-100 grid and Spider.

**Day 2**Children use a beaded line to solve addition and subtraction calculations. Some will find the missing number in a number sentence.

### Addition/subtraction facts; missing nos

**Day 1**

Children explore the different ways to find a total of 10 using 2 or 3 numbers.

**Day 2**

Children find the missing numbers for totals of 10 and 20.

**Day 3**

Children explore possible solutions to find a total of 20.

### Add and subtract 10/20; extend to 11/21

**Day 1**Children complete the missing squares from a 100 grid to add and subtract 10 from a given number.

**Day 2**

The clothes shop. Children make clothes 10p more expensive and 10p cheaper.

**Day 3**

Children use bead strings or a 1-100 grid to add 10, 11, 20 and 21.

**Day 4**

Children use bead strings or 1-100 grid to subtract 10, 11, 20 and 21.

### Add pairs of 2-digit numbers

**Day 1**

Most children use ‘Choose your own’ sheets to generate and solve different addition problems involving adding 2-digit numbers.

**Day 2**

Children practise adding ‘ordinary’ and ‘nearly’ numbers using a chosen method.

### Add/subtract near multiples of 10

**Day 1**

Children rehearse adding ‘nearly numbers’ using the strategy of adding the multiple of 10 and then subtracting 1.

**Day 2**

Children use calculators to help them look for patterns when adding 9, 19, 29 and 39.

### Add/subtract 11, 12, 21, 22, etc

**Day 1**

Most children create their own questions by selecting pairs of numbers to add. Some will complete a challenge involving missing numbers.

**Day 2**

Children are set different challenges to add 11, 12, 13, 21, 22, 23, 31, 32 or 33 to other 2-digit numbers; answers ≤110.

**Day 3**

Children calculate which of a set of given numbers is required to make a set of given calculations correct.