Maths help for parents of children aged 5 to 11
Maths Game: Cross number 2. 2-digit subtraction.
The second in our mini series of cross numbers. That’s a crossword, but with numbers rather than words as clues and answers. This one is all about subtraction of two 2-digit numbers, without crossing the tens boundary. Just slide the numbers onto the grid. There are only just enough of each digit to complete the grid correctly.
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Free Y5 maths worksheets: Multiply and divide by 10 and 100
Multiplying and dividing by 10, 100 and 1000 are fundamental in our system of arithmetic. These concepts will eventually be used in work involving negative numbers, decimals and percentages so it is important to have a sound understanding of what is going on.
Once again, and I will never get tired of saying it:
NEVER say ‘to multiply by 10 we add a nought.’
This might seem to work for whole numbers, but it leads to misunderstandings with decimals: 3.55 x 10 is not 2.550!
The ideas to get across are;
When multiplying by 10 the digits move one place to the left.
When multiplying by 100 the digits move two places to the left.
When dividing by 10 the digits move one place to the right.
When dividing by 100 the digits move two places to the right.
Basic sums cause stress for adults!
So reports the BBC today.
Research from Learndirect suggests that over 13 million adults in the UK become stressed when carrying out basic sums. being involved in these stressful situations made the participants’ blood pressure rise by up to 40%. This study shows that people have to use these basic skills about 14 times a day.
One of the most common stress raisers is working out cooking times!
The survey shows that over 27% of adults said they lacked confidence in their basic maths skills.
I think that many of us realise that this is true and that many adults find straightforward maths anything but – yet we keep piling on more pressure on children1