Level 5- Mental Maths Flashcards
7 x 7?
49
How many nines are there in fifty-four?
6
What number should you add to
negative three to get the answer five?
8
Add two point five to three quarters?
3 1/4 or 3.25
I think of a number. I call it n.
I square my number and then add four.
Write an expression to show the result.
n x n + 4 or n2 + 4
n2 + 4
What is three fifths of forty pounds?
£24
What is the volume of a cuboid measuring five centimetres
by six centimetres by seven centimetres?
210 cm3
Look at these numbers. 37 69
Add them.
106
I start at one point seven and count up in equal steps.
‘One point seven, one point eight, one point nine, …’
What is the next number?
2 or two or 2.0
Write the ratio twelve to six in its simplest form.
2 : 1
What is the square root of eighty-one?
9
Write two-fifths as a decimal.
2/5 = 4/10 = 0.4
Look at this expression. 6ab
Double it.
6ab + 6ab = 12ab or 2 x 6ab = 12ab
How many faces has a cube?
6
When m equals three, what is the value of 3m?
9
What is one hundred divided by negative five?
–20
How many seconds are there in one and a half minutes?
90 seconds
How many pairs of parallel sides does a parallelogram have?
2
n a quiz, I got eighteen out of twenty questions correct.
What percentage of the questions did I get correct?
18/20
90/100
90%
How many millimetres are there in nine centimetres?
How many millimetres are there in nine centimetres?
A lesson starts at nine fifty and finishes at ten fifteen.
How long is the lesson in minutes?
25 minutes
I buy a book costing one pound forty-five.
What change should I get from a five pound note?
£3.55
Add together sixty-five and fifty-eight.
123
One magazine costs one pound ninety-five.
What will be the cost of five of these magazines?
£9.75
