MathSphere Ltd
P.O. Box 1234
Worthing
BN14 7YX
tel: 01903 500606
fax: 01903 505645

Description

Over 100 separate activities which give children confidence and competence with calculating. Each activity gives a clear focus to the relevant objective and creates numerate and confident children.

Sharp focus

Your children can move ahead of the average, enjoy their maths and be inspired by numbers. This CD promotes consistent use of standard, efficient written methods of calculating as required by the new UK Primary Framework for Mathematics. As a parent you will know that the activities match those of the school.

Help

Clear, optional help files, to assist children with mental methods as well as guiding them through pencil and paper methods of calculating.
Easy one-click print outs for record keeping/short term assessment.

Calculating accurately

Using this CD will enable children to calculate accurately and efficiently, using an increasing range of calculation strategies.

Screen shots from Calculations Year 5

As well as timed challenges and games, activities for the year 5 CD include:

Revise addition facts and strategies

• revise 2-digit numbers that total 100
• revise adding 9
• revise 2-digit addition
• understand the vocabulary of addition
• which two numbers have a total of…?
• revise addition of decimals

Addition of multiples of 10 and 100

• add two multiples of 100
• add a 3-digit multiple of 10 to a 3-digit number
• add a multiple of 10 to make 1000
• pairs of multiples of 50 that make 1000
• add 3 multiples of 100

Apply addition strategies

• add three small numbers
• add four small numbers
• add the nearest multiple of 10 and adjust
• relate addition and multiplication

Efficient written methods for addition

• adding decimals
• efficient written method: adding 2-digits
• efficient written method: adding 3-digits
• efficient written method: adding money

Revise subtraction facts and strategies

• revise 2-digit subtraction
• understand the vocabulary of subtraction
• subtract a larger number from a smaller number
• subtract multiples of 100
• subtract 3-digit multiples of 10
• subtract 99

Use knowledge to derive differences

• find a difference by counting up
• find a difference either side of a multiple of 1000
• find a difference (1)
• find a difference (2)
• subtract the nearest multiple of 10 and adjust
• subtract decimals

 

Efficient written methods for subtraction

• efficient written method: 2-digits
• efficient written method: 3-digits
• efficient written method: money

Addition and subtraction of decimals

• decimals that total 1
• identify near doubles with decimals
• add a pair of decimal fractions
• subtract a pair of decimal fractions
• add a decimal to a whole number

Calculate doubles and halves

• double multiples of 10
• double multiples of 100
• halve multiples of 10
• double a decimal fraction
• halve a decimal fraction

Revise understanding of multiplication

• start to use brackets
• use the vocabulary of multiplication
• multiply 2-digit multiples of 10 by 6, 7, 8 or 9
• multiply by 0.5
• find products

Know multiplication facts and factors

• know tables
• respond rapidly to written questions
• find pairs of factors of 24
• revise multiplying by 100
• multiply a multiple of 10 by a multiple of 100
• factors of 100

Further multiplication strategies

• multiply 2-digits by 9
• multiply 2-digits by 11
• multiply 2-digits by 12
• multiply 2-digits by 21
• multiply 2-digits by 19
• multiply a 2-digit number by a 1-digit number

Use knowledge of multiplication

• multiplying by 4 by doubling twice
• multiply by 5 by multiplying by 10 and halving
• multiply by 50 by multiplying by 100 and halving
• 16x table by doubling 8x table
• find 1/6 by finding 1/3 and halving
• recognise multiples of 6

Refine efficient written methods for multiplication

• written multiplication HTU x U
• written multiplication TU x TU
• develop written methods for decimals
• written multiplication: decimals

Revise understanding of division

• understand the vocabulary of division
• give a remainder as a fraction
• division as a fraction
• relate division and fractions
• divide a 4-digit multiple of 100 by 100
• divide a 2-digit number by 10

Division and remainders

• give a remainder as a whole number
• give a quotient as a decimal fraction
• rounding up or down
• rounding to the nearest whole one

Find fractions and percentages

• finding unit fractions
• finding fifths  finding tenths
• finding fractions
• pairs of fractions which make 1
• finding percentages
• finding 25%

Refine efficient written methods for division

• written methods of division (1)
• written methods of division (2)
• written methods of division (3)

Checking answers

• relate subtraction and addition (1)
• relate subtraction and addition (2)
• relate addition and subtraction
• estimating addition
• estimating multiplication
• odd and even numbers

Use a calculator

• complete addition questions
• complete subtraction questions
• multiply decimals
• solve written problems
• consecutive numbers
• negative numbers
• converting metres to centimetres
• 2-step calculations

Tables challenge

• all tables