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Presentation transcript:

Whiteboardmaths.com © 2007 All rights reserved

Place Value: Hundreds Tens and Units It is difficult to see how many objects there are above without counting them. It would be easier to tell how many there were if they had been grouped into Hundreds, Tens and Units.

HUNDREDS TENS UNITS So we write: H T U In this case the 2 is the Hundreds (H), the 3 is the Tens (T) and the 4 is the units (U).

Place Value: Hundreds Tens and Units H T U The place where the digits are put is very important. If we swap the hundreds and tens digit in our example we get a number with a different value H T U Remember: If you change the PLACE of the digits you change the VALUE of the number.

Place Value: Hundreds Tens and Units We will write down the number of objects in each case below using Hundreds, Tens and Units

Place Value: Hundreds Tens and Units Write down the number of objects in each case below using Hundreds, Tens and Units

Place Value: Hundreds Tens and Units Write down the number of objects in each case below using Hundreds, Tens and Units

Place Value: Hundreds Tens and Units Write down the number of objects in each case below using Hundreds, Tens and Units

Write down the number in each case Use with Worksheet

Worksheet Write down the number in each case. Worksheet

Abacus ABACUS HT U Throughout history many civilisations used an abacus to help with counting and calculation. The simple abacus shown below has 3 pegs for Hundreds, Tens and Units. Rings are placed on each peg to record the number or quantity of objects. The number shown on this abacus is: 453

ABACUS HT U Throughout history many civilisations used an abacus to help with counting and calculation. The simple abacus shown below has 3 pegs for Hundreds, Tens and Units. Rings are placed on each peg to record the number or quantity of objects. The number shown on this abacus is: 236

Throughout history many civilisations used an abacus to help with counting and calculation. The simple abacus shown below has 3 pegs for Hundreds, Tens and Units. Rings are placed on each peg to record the number or quantity of objects. The number shown on this abacus is: 572

Throughout history many civilisations used an abacus to help with counting and calculation. The simple abacus shown below has 3 pegs for Hundreds, Tens and Units. Rings are placed on each peg to record the number or quantity of objects. The number shown on this abacus is: 807

Throughout history many civilisations used an abacus to help with counting and calculation. The simple abacus shown below has 3 pegs for Hundreds, Tens and Units. Rings are placed on each peg to record the number or quantity of objects. The number shown on this abacus is: 970

Throughout history many civilisations used an abacus to help with counting and calculation. The simple abacus shown below has 3 pegs for Hundreds, Tens and Units. Rings are placed on each peg to record the number or quantity of objects. The number shown on this abacus is: 32

Throughout history many civilisations used an abacus to help with counting and calculation. The simple abacus shown below has 3 pegs for Hundreds, Tens and Units. Rings are placed on each peg to record the number or quantity of objects. The number shown on this abacus is: 107

Throughout history many civilisations used an abacus to help with counting and calculation. The simple abacus shown below has 3 pegs for Hundreds, Tens and Units. Rings are placed on each peg to record the number or quantity of objects. The number shown on this abacus is: 877

Throughout history many civilisations used an abacus to help with counting and calculation. The simple abacus shown below has 3 pegs for Hundreds, Tens and Units. Rings are placed on each peg to record the number or quantity of objects. The number shown on this abacus is: 647

Throughout history many civilisations used an abacus to help with counting and calculation. The simple abacus shown below has 3 pegs for Hundreds, Tens and Units. Rings are placed on each peg to record the number or quantity of objects. The number shown on this abacus is: 987

Throughout history many civilisations used an abacus to help with counting and calculation. The simple abacus shown below has 3 pegs for Hundreds, Tens and Units. Rings are placed on each peg to record the number or quantity of objects. The number shown on this abacus is: 999

(a) (b) (c) (d) (e) (f) (g) (h) Write down the numbers shown on each abacus

Abacus Worksheet (a) (b) (c) (d) (e) (f) (g) (h) Write down the numbers shown on each abacus. Worksheet

Place Value: Hundreds Tens and Units We will place the following numbers in order of size (smallest first, largest last) When putting 3 digit numbers in order of size compare the HUNDREDS digit first. Smallest hundreds digit 485 Smallest tens digit 502 Smallest units digit

Place Value: Hundreds Tens and Units We will place the following numbers in order of size (largest first, smallest last) When putting 3 digit numbers in order of size compare the HUNDREDS digit first. largest hundreds digit 930 Largest tens digit

Place Value: Hundreds Tens and Units In each case below put the numbers in order (smallest first, largest last). (a) (b) (c) In each case below put the numbers in order (largest first, smallest last). (a) (b) (c)

Worksheet Place Value: Hundreds Tens and Units In each case below put the numbers in order (smallest first, largest last). (a) (b) (c) In each case below put the numbers in order (largest first, smallest last). (a) (b) (c)