Number 13 · Year 8
Multiplying and Dividing Negative Numbers
Multiplying and dividing with negative numbers has two parts: the size and the sign. Work out the size with your times tables.
£3.50
Without Panic Maths · Number 49
Bounds and Error Intervals
A rounded value stands for a whole range of possible values. Halve the rounding unit, then subtract it for the lower bound and add it for the upper bound. The lower bound is included; the upper bound is not.
- Mini-lessons
- 8
- Questions
- 108
- Student Pack
- 77 pages
- Suggested year
- Year 9
What you get
- Student Pack (PDF, 77 pages)
- Teacher Pack (PDF) with every answer and reteach cards
- Print as many copies as you need for your own pupils
Save with a bundle
- Rounding & Accuracy4 packs ·
£14£12 - Number, Year 913 packs ·
£42£37 - Number: complete strand54 packs ·
£182£161
What this pack does
What pupils learn
A rounded value stands for a whole range of possible values. Halve the rounding unit, then subtract it for the lower bound and add it for the upper bound. The lower bound is included; the upper bound is not.
The mini-lessons
- What do bounds mean?
- Bounds to the nearest whole number
- Bounds to the nearest 10, 100 and 1 000
- Bounds to decimal places
- Writing error intervals correctly
- Reading an interval backwards
- Bounds in real contexts
- Mistake Detective and mixed reasoning
Inside every pack
What each part of the page is for
Confidence check
Pupils tick how a topic feels before they start, and again at the end. There are no marks, so it's an honest picture of where they are.
Short mini-lessons
Each topic is split into small steps. Every mini-lesson opens with one big idea and a short, plain-English explanation.
Visuals for every idea
Diagrams such as a formula 'rule machine' or a place-value picture show the maths, so pupils can see it as well as read it.
Worked examples
Every method is modelled step by step before pupils try it, with each stage labelled so they can follow it on their own.
Scaffolded practice
Questions start with prompts (what do you need to find, follow the example, check it makes sense) and gradually ask for more independence.
Spot the trap
Common mistakes are named before pupils make them, and Mistake Detective questions ask them to find and fix errors.
Pause and think
Short 'explain it in your own words' prompts check that pupils understand why the maths works, not just how.
Teacher Pack with answers
Every pack comes with a Teacher Pack: all the answers, plus reteach cards saying what to watch for, what to say, and what to try if a pupil is still stuck.
More number packs
You might also like
Number 17 · Year 8
Multiplying and Dividing Decimals
Multiplying by 10, 100 or 1 000 makes a number bigger, so the digits move left. Dividing makes it smaller, so the digits move right. The decimal point stays still. Count the zeros to know how many places.
£3.50
Number 18 · Year 8
Multiplying Decimals by Whole Numbers
Multiplying a decimal by a whole number still means equal groups. 0.4 × 3 is three groups of 0.4. Estimate first, multiply, then make sure the answer is a sensible size.
£3.50