Calc1a-Write.docx
INTEGER PLACE VALUE
Please work through the powerpoint called: Calc1a-IntPV.ppsx
Integer is just a special term meaning ‘whole number’.
We use a denary or decimal system which means that every 10 in one column
is worth 1 in the next column (on its left).
MILLIONS
THOUSANDS
HTU
Hundred
Million
Ten
Million
Million
Hundred
Thousand
Ten
Thousand
Thousand
Hundred
Ten
Unit
100 000 000
10 000 000
1 000 000
100 000
10 000
1 000
100
10
1
The integer parts of any number lie on the left hand side of the decimal
point. If the decimal point is not shown, then you can write it directly after
the units.
E.g.
34 could be written as 34. or 34.0 or 34.00 or 34.000…
WRITING WHOLE NUMBERS IN WORDS
To write a whole number in words, imagine the figures lined up in their
column values (as shown in the table above).
Writing Numbers up to 10,000
 For numbers worth less than 10,000 start on the left and write each
digit in words followed by its individual column value.
 The exception comes if there are any tens as we have special names for
these, e.g. we wouldn’t write five tens we would write fifty…
 The other exception is the last digit it NOT followed by the word ‘units’
E.g.
5602 
Th
H
T
U
5
6
0
2
Five thousand, six hundred and two
Writing Bigger Numbers
 From right to left, imagine your digits in sets of three splitting into the
overview columns of values – i.e. splitting the millions from the thousands
from the HTU columns. (In capitals in our table.)
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Calc1a-Write.docx
 It is easier to put commas or spaces between each batch of three
digits (remember to do this from RIGHT to LEFT!!!) to separate the
HTU from the (HTU) thousands and (HTU) millions.
 From left to right, write the (up to) 3 digit value followed by the
overview column value, then the next set of 3 digits followed by its
overview column value and so on…
Millions
E.g.
14502497  14, 502, 497
1
4
Thousands
H T U
5
4
0
2
9
7
Fourteen million, five hundred and two thousand, four hundred and ninety seven
Task: Write the following numbers in words
1) 759 = …………………………………………………………………………………………………………………………
2) 5074 = ………………………………………………………………………………………………………………………
3) 12418 = ……………………………………………………………………………………………………………………
4) 205661 = …………………………………………………………………………………………………………………
………………………………………………………………………………………………………………
5) 256810922 = …………………………………………………………………………………………………………
…………………………………………………………………………………………………………
WRITING WHOLE NUMBERS IN FIGURES
Writing Figures up to 10,000
Imagine the column values and as you read the number put the digits in the
correct column value.
If a column value is not mentioned put a zero in its column.
E.g.
Two thousand and forty-three
…
Thousands
2
H
0
T
4
[REM: forty = 4 tens]
U
3 = 2 043
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Calc1a-Write.docx
Writing Figures for Larger Numbers
As you read the number put the digits in the correct ‘overview’ column of
values and if an individual column isn’t mentioned put a zero in its column.
E.g.
Sixteen million, three hundred and eight thousand and twelve
…
MILLIONS THOUSANDS
1
6
3
0
8
H T U
0 1 2 =
16 308 012
Task: Write the following numbers in figures.
(1) Fifty-nine = ………………………………………
(2) Eight hundred and twenty three = ……………………………………
(3) Seven thousand, eight hundred and five = ………………………………
(4) Forty-one thousand and fifteen = ……………………………………
(5) Eight million, twelve thousand, one hundred and nine = ……………………………
(6) Six hundred and fifty-two million and eight = ……………………………………………
Work through the MyMaths lesson (and its online homework) called:
Number > Counting and Place value > HTU Place Value found at:
http://app.mymaths.co.uk/41-resource/htu-place-value
http://app.mymaths.co.uk/41-homework/htu-place-value
Save and complete the worksheet called: PVInt-S1.xlsx
DECIMAL PLACE VALUE
Please work through the powerpoint called: Calc1a-DecPV.ppsx
You have already met the integer place value columns. After the decimal
point we get the ‘decimal’ column values which are worth less than 1. As
before, moving right to left, 10 of 1 column is worth 1 of the next column.
Although columns go on forever, we will focus on the tenths, hundredths and
thousandths columns.
HTU
Tenth
Hundred
Ten
Unit
100
10
1
1
/10
0.1
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Hundredth
1
/100
0.01
Thousandth
1
/1000
0.001
Calc1a-Write.docx
Reminder: A whole number can be written with a decimal point at the end
and after that point, as many zeros as you like won’t change its value.
E.g. 125 = 125. = 125.0 = 125.00 = 125.000
WRITING DECIMALS IN WORDS
To write a decimal number in words, imagine the figures lined up in their
column values (as shown in the table above). Write out the ‘whole number’
part of the number as you have previously been taught in the notes on the
previous pages then write ‘point’ followed by each individual digit value
(without its column value).
H
E.g.
27.304 
T
U . Tth Hth Thth
2
7 . 3
0
4
Twenty-seven point three zero four
Task: Write the following numbers in words
1) 5.8 = ………………………………………………………………………………………………………………
2) 29.15 = …………………………………………………………………………………………………………..
3) 4008.067 = …………………………………………………………………………………………………….
…………………………………………………………………………………………………………………………………
4) 162.005 = ……………………………………………………………………………………………………….
WRITING DECIMALS IN FIGURES
To write a decimal number in figures, imagine the figures lined up in their
column values (as shown in the table above). Write out the ‘whole number’
part of the number as you have previously been taught in the notes on the
previous pages then write ‘point’ followed by each individual digit value in the
order it is quoted.
E.g. Seven hundred and one point zero six three 
H
T
U . Tth Hth Thth
7
0
1 . 0
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Calc1a-Write.docx
Sometimes when there are only one or two non-zero decimal digits after the
point, the ‘decimal’ column value may be stated. Put the digit(s) stated in
the correct decimal column(s) and then fill any gaps with zeros.
E.g. Nine and three hundredths 
H
T
U . Tth Hth Thth
9 . 0
3
Task: Write the following numbers in figures.
(1) Fifty-eight point six three = ………………………………………
(2) Four hundred and twelve and six tenths = ……………………………………
(3) Eighty-seven and fourteen thousandths = …………………………………
(4) Nineteen point four eight six = …………………………………
(5) Sixty-five and twenty-three hundredths = ……………………………
Please worked through the MyMaths lesson (and its online homework) called
Decimal Place Value found at:
http://app.mymaths.co.uk/53-resource/decimal-place-value
http://app.mymaths.co.uk/53-homework/decimal-place-value
Save and complete the worksheet called: PVDec-S1.xlsx
For further OPTIONAL practice, you could work through the following
MyMaths lessons:
Introducing Decimals found at:
http://app.mymaths.co.uk/50-resource/introducing-decimals
Decimal Number Lines Intro found at:
http://app.mymaths.co.uk/51-resource/decimal-number-lines-intro
Decimal Number Lines found at:
http://app.mymaths.co.uk/52-resource/decimal-number-lines
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