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LILIAN LEE YUE LAN D20102045950
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YEAR 4/ ADDITION WITHIN 100 000
YEAR 4/ UNIT 1 WHOLE NUMBERS- round off the numerals
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YEAR 4/ UNIT 1 WHOLE NUMBERS- ADDITION WITHIN 100 000
YEAR4/ UNIT 1 WHOLE NUMBERS-round off numbers
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Tuesday, 6 December 2011
YEAR 4/ UNIT 1 WHOLE NUMBERS- ADDITION WITHIN 100 000
KEY NOTES
6 548 }addens
+ 1 290 }
7 838 }
sum
Addition is a commutative operation.
e.g:Any whole numbers
a
and
b
a
+
b
=
b
+
a
Addition is an associative operation.
e.g:Any whole numbers
a
,
b
and
c
.
( a + b ) + c = a + ( b + c )
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