Short Blocks

# Maths Year 5 Autumn Place Value

Each unit has everything you need to teach a set of related skills and concepts.

## Place value in 5-digit numbers(suggested as 3 days)

### Planning and Activities

Day 1 Teaching
Model writing numbers dictated in words and show the place value of each digit using a place value chart. Write place value additions and subtractions, e.g. 43,561 – 3000.
Group Activities
-- Work out what to add to a number with one zero, e.g. 50,555 to make all digits the same.
-- Identify numbers with digits of given value.
-- Create 5-digit numbers from given digits.

Day 2 Teaching
Start with a 5-digit number and add/subtract 1s, 10s, 100s, 1000s, 10,000s to get a number with all the digits the same, e.g. 44,444. Discuss how to do this, letting children have a go first. Agree the place value of each digit.
Group Activities
Use the in-depth problem-solving investigation ‘Space Distances’ from NRICH as today’s group activity.
Or, use these activities:
-- Play a game adding 1s, 10s, 100s, 1000s, and 10,000s.
-- Work out what to add and subtract, one stage at a time to make the number 55,555.
Day 3 Teaching
Generate 5-digit numbers using cards, then place these on a line and compare pairs of numbers. Ensure children know which digits are most important when ordering or comparing numbers.
Group Activities
-- Play a game creating and comparing 5-digit numbers.

### You Will Need

• Vertical place value chart (see resources)
• Calculators
• Mini-whiteboards and pens
• IWB calculator
• 1–6 dice per pair
• Blank dice & wipe-off marker pen per pair
• 0–9 digit cards
• 0–100,000 landmarked line (see resources)

### Mental/Oral Maths Starters

Day 1
Place value in 4-digit numbers (pre-requisite skills)

Day 2
Add/subtract 100 or 1000 to/from 4-digit numbers (pre-requisite skills)

or
Count on/back in 10s from 3-digit numbers (pre-requisite skills)

Suggested for Day 3
Pairs to 100 (simmering skills)

### Worksheets

Day 1
Use knowledge of place value to complete number sentences.

Day 2
Add/subtract 1, 10, 100, 1000 and 10,000.

Day 3
Place 5-digit numbers on landmarked lines and compare them.
Use given digits 1–5 to make numbers in given ranges.

### Mastery: Reasoning and Problem-Solving

• Sketch a line 0–100,000. Teacher marks a mystery number (e.g. 5000). What number have I marked? Children ask question to guess. Repeat.
• Add 1, 10 or 100 each go. How many goes to turn 98,089 into 99,999.

In-depth Investigation: Space Distances
This task focuses on distances travelled by the asteroid 'Florence', providing the opportunity to add and subtract powers of 10. Space Distances from nrich.maths.org.

### Extra Support

Digit Doom/Digit Delight
Understanding place value in 4 digit numbers