### Planning and Activities

**Day 1**Use a landmarked line to model rounding 1-place decimals to the nearest whole.

**Further Teaching with Y3**

Use landmarked money line to model rounding to nearest pound.

**Group Activities: T with Y3**

Y3 -- Create amounts of money; round to the nearest pound.

Y4 -- Mark decimal numbers on a landmarked line and circle the nearest whole number.

-- Mark numbers with one decimal place on empty 0–10 number lines. Write numbers with one decimal place that round up and down to a given whole.

**Day 2**Counting beyond 999 using an incomplete 1001 to 1100 grid. Make 4-digit numbers with place value cards.

**Further Teaching with Y4**

Use the ITP

*Moving digits*to model multiplying and dividing by 10 and 100.

**Group Activities: T with Y4**

Y3 -- Find missing numbers on a 1001–1100 number grid (differentiated grids provided).

-- Give clues for a mystery number on a 1001–1100 number grid (differentiated grids provided).

Y4 -- Use number cards on a place value grid to multiply and divide 1-digit numbers by 10/100.

-- Explore multiplying and dividing by 10 and 100 on a place value chart (100s to 0.01s).

**Day 3**Play the ‘Nice/Nasty’ 4-digit game. Model finding differences between larger numbers using Frog (e.g. 1987 and 2003).

**Further Teaching with Y4**

Work through further examples of multiplying and dividing by 10 and 100 using digit cards and a cardboard box ‘function machine’.

**Group Activities: T with Y3**

Y3 -- Use Frog to find the difference between pairs of numbers by counting up.

Y4 -- Use the function machine with place value grids to multiply by 10 and by 100 (numbers with one and two decimal places).

**Day 4**Use a money place value grid to develop understanding of coin values (£/p).

**Further Teaching with Y4**

Use a decimal place value chart to model place value addition and subtraction.

**Group Activities: T with Y4**

*Use the in-depth problem-solving investigation ‘Maths detectives’ as today’s group activity.*

Or, use these activities:

Y3 – Investigation: How many amounts of money from £1 to £10 use the digit 9 at least once?

Y4 -- Use place value to add and subtract to/from 2-place decimals.

**Day 5**Use place value to solve money problems, e.g. £3.65 – 60p, £4.08 + 10p.

**Further Teaching with Y4**

Use place value to solve measures problems, e.g. 2.34m + 4cm, 1.34m – 20cm.

**Group Activities: T with Y3**

Y3 -- Add and subtract multiples of 10p to and from given prices.

Y4 -- Convert distances in m to cm, or vice versa, to help solve measures problems.

-- Solve measures problems. Recognise which digit will change when a number of m or cm is added.