## A couple of maths mistakes: units of measurement and long multiplication

0

Here are a couple of classic maths mistakes:

In this first example, the child didn’t think sufficiently about the units of measurement.

In this second example, **can you spot the long multiplication error**? Could 35 x 32 really be only 175? Having a feeling for a decent estimate can help you spot an error. 35 x 32 was going to be at least 900 as we know that 30 x 30 would be 900 and 35 x 32 would be more than that.

##### Welcome

##### Marvellous Mistakes – When Learning Happens

- Welcome to the Marvellous Mistakes Pages
- Georgia asks a question that none of us could answer!
- Abi gets frustrated multiplying and dividing by 10, 100 and 1000
- Jasmine makes mistakes while finding the perimeter of compound shapes
- Grace makes mistakes with compact multiplication
- A couple of maths mistakes: units of measurement and long multiplication
- Could of, or Could have – which one is correct? Kai, Ella, Alex and countless other fall into the ‘Of Trap’.
- Pencil and Paper methods for addition and subtraction marvellous mistakes by Eeshal and Reece
- Jessica makes a marvellous mistake while deciphering Roman numerals
- Saif subtracts nothing from a whole number and ends up with nothing!

##### Where on Earth are our visitors from?

##### Spelling – Words of the Week

##### Science

##### Flashback Narrative Unit of Work

##### Mr Harris’ Maths Pages

- Long Multiplication Videos
- Mr Harris Maths 9th Jan 2015 Ratio and Probability
- Mr Harris’ maths 16th January 2015
- Mr Harris maths 23rd January
- Mr Harris’ maths 31st January 2015
- Mr Harris’ maths 13/2/15
- Mr harris’ maths 27/2/2015
- Mr Harris’ maths 6th March 2015
- Mr Harris’ maths 20th March
- Mr Harris’ maths 27th March 2015
- Mr Harris’ maths 24th April 2015
- Mr Harris’ maths June 12th

##### Mr Wilkinson’s Maths Homework Pages

- 2012 Mens Olympic 100m decimal difference maths homework
- Decimals Homework Review
- Mean. Median, Mode and Range
- Fractions Maths Homework
- Improper fractions and mixed numbers homework
- Fractions of amounts and comparing fractions homework
- Finding Percentages Homework
- Area and Perimeter videos and homework
- Practising compact multiplication and long multiplication homework

##### Mr Cooke’s Maths Pages

- Mr Cooke Maths 19th June 2015
- Mr Cooke’s Maths 12th June
- Mr Cooke’s Maths 8th May 2015
- Mr Cooke’s Maths 1st May
- Mr Cooke’s Maths 24th April
- Mr Cooke’s Maths 2nd April
- Mr Cooke Maths 27th March 2015
- Mr Cooke’s Maths 20th March 2015
- Mr Cooke’s Maths 13th March
- Mr Cooke Maths 6th March 2015
- Mr Cooke Maths 27th Feb 2015
- Mr Cooke’s Maths w/e 13.2.15
- Mr Cooke’s maths 6th February
- Mr Cooke’s maths 30th January
- Mr Cooke’s Maths 23rd Jan – Equivalent fractions and decimals
- Mr Cooke Maths w/e 16th January – fraction action
- Mr Cooke’s Maths Set
- Mr Cooke’s maths January 9th 2015
- Converting fractions to decimals game
- A couple of maths mistakes: units of measurement and long multiplication
- Mr Harris’ maths 31st January 2015
- Mr Cooke’s Maths w/e 13.2.15
- Mr Harris’ maths 13/2/15
- Ratios Introduction
- Mr Harris’ maths 27/2/2015
- Mr Harris’ maths 6th March 2015
- Multiplication Pencil and Paper Methods
- Practising compact multiplication and long multiplication homework
- Mr Harris’ maths 13th March
- Mr Harris’ maths 20th March
- Mr Harris’ maths 27th March 2015
- Mr Harris’ maths 24th April 2015
- Mr Harris’ maths June 12th
- Pencil and Paper method videos to remind you of what to do
- Equivalent Fractions video from the Khan Academy
- Improper and mixed fractions
- How Stean Gorge Y6 Residential
- KS2 SATS presentation for parents
- Working Memory
- Multiplication Tables
- How Stean Gorge Y6 Residential

##### The Reading Corner

##### 6W E-Learning Links

##### Purple Mash

##### Our Friends

##### Topic Work

##### Fun games

##### Recent Posts

##### Recent Comments

- Marion on Budgeting after SATs
- Nadine Armitage on Budgeting after SATs
- Karen Chaudhari (Eva's Mum) on Budgeting after SATs
- evie m on Just Another Week in Year 6…
- Nadine Armitage on Just Another Week in Year 6…