Download Maths Vocabulary Parent Guide

Maths Vocabulary Parent Guide
Children need to learn a range of words for calculating, here are some question ideas for you to
help your child. Explore the different questions with your child changing the numbers. Practise
using the maths vocabulary in lots of different ways.
+
add, addition, more, plus, increase, sum, total, altogether, score,
double, near double, how many to make….?, how much more is..?
What is the sum of 163 and 311?
What is the total of 1.6 plus 3.5?
Can you increase 313 by 230?
What is double 18?
subtract, subtraction, take away, minus, decrease, difference
between, count back, how many fewer is … than …?
how many are left over? less than
Subtract 89 from 151
Mentally take away 13.5 from 28.6
What is 544 minus 264?
What is the difference between -5 and 3?
x
lots of, groups of, times, multiply, multiplied by, multiple of, product, array
repeated addition, double, square numbers
What is the product of 7 and 6?
Name a multiple of 9
Double 548
What is 8² (8 squared)
÷
share, group, divide, division, divided by, divide into, remainder,
halve, equal groups of.., share equally, divisible by,
factor, fraction
Share 56 by 8
What is the remainder of 29 divided by 9?
What fraction of 48 is 12?
What are all the factor pairs of 48?
Acute means an angle less than 90˚
Common denominator means that 2 or more fractions will have the same
denominator. E.g. ¾ and 7/8. If I multiply ¾ by 2 then I will get 6/8. Now both
fractions have a common denominator.
Denominator means the number on the bottom of a fraction
Divisor means the quantity by which another quantity is divided
e.g. in 17 ÷ 4, the 4 is the divisor
Factor means a whole number (integer) that will divide exactly into another
number without any remainders e.g. 5 is a factor or 10
Improper fraction means any fraction where the numerator (top number) is
greater than the denominator (bottom number) e.g. 6/4 or 9/6 or 100/24
Integer means a whole number
Inverse means the opposite calculation e.g. addition is the inverse of
subtraction
Mean means the average of a numerical set of data. It is calculated by adding up
all of the amounts within the set of data and dividing your total by the amount
of numbers added. For example:
3, 4, 5, 7, 6,
Mean = (3 + 4 + 5 + 7 + 6) ÷ 10 = mean of 5
Median means the middle number when a set of data is put in either ascending
or descending order. With an odd set of data it is simply the middle number, in
an even set of data, add the 2 middle numbers and divide by 2.
Mixed Number or Mixed Fraction means a whole number and a fraction
combined e.g. 2½
Mode means the most commonly or frequently occurring number within a set.
For example: 2, 5, 7, 3, 4, 2, 6, 3, 3, 4, 2, 6, 2. The mode of this set of data is 2
as it occurs the most.
Multiple means a number in a particular times table e.g. 50 is a multiple of 10 as
it is in your 10 x table.
Numerator means the number on the top of a fraction
Obtuse means an angle greater than 90˚ but less than 180˚
Parallel means lines the same distance apart, never touching
Partition means split the number into the values of each digit e.g. 120 is 100 and
20
Perpendicular means at right angles (90˚) to
Product means multiple. The product of 4 and 3 is 12.
Proper fraction means any fraction where the numerator (top number) is less
than the denominator (bottom number) e.g. ¼ or 5/6 or 20/100
Quotient means the number obtained as the result of a division calculation. For
example the quotient of 45 and 3 is 15.
Range means the difference between the highest and lowest numbers in a set of
data e.g. Data showing shoe sizes: 3, 6, 4, 7, 2, 5, 4, 3, 6, 4
There is a range of 5 shoe sizes from 2-7.
Ratio means the relative sizes of 2 or more values. For example in a class there
are 6 boys and 4 girls so there is a ratio 6:4 (boys : girls) or simplified this is
3:2.
Sum means add and only add! 4 x 6 is not a sum it is a calculation.
1, 1, 2, 3, 3, 4, 4, 5, 7, 9 leaves 3 and 4 in the middle. (3 + 4) ÷ 2 = 3.5
Translation means moving a shape without rotating, resizing or flipping it. The
shape should look exactly the shape just in a different position on a grid.
(Sliding)
Unit fraction means a fraction where the numerator (top number) is 1 e.g. ½ or
¼
If there are further maths words you are unsure of then remember you can
always ask in school. There are also some great sites which can provide
definitions:
https://www.mathsisfun.com/definitions/
http://www.amathsdictionaryforkids.com/dictionary.html