Tuesday, 18 December 2012
Friday, 14 December 2012
Thursday, 13 December 2012
Tuesday, 4 December 2012
Monday, 3 December 2012
Saturday, 1 December 2012
Tuesday, 27 November 2012
Monday, 26 November 2012
Sunday, 25 November 2012
1.
Each digit
in a number has its own place value.
Example :
The place value of each digit in 1 435 789 (One
million four hundred and thirty five thousand seven hundred and eighty nine) is
shown in the table below.
Place Value
|
||||||
Millions
|
Hundred
thousands
|
Ten
thousands
|
Thousands
|
Hundreds
|
Tens
|
Ones
|
1
|
4
|
3
|
5
|
7
|
8
|
9
|
2.
Each
number can be rounded off to a certain place value.
Example :
i.
25 944 --------
25 900 (when rounded off to the nearest hundred)
ii.
75 938 --------
75 940 (when rounded off to the nearest ten)
3.
An order
of number is a pattern that can begin with the smallest or biggest number.
Example :
Write the following numbers.
30 798
|
29 798
|
31 798
|
28 798
|
i.
in
ascending order (beginning with the smallest)
28 798 , 29 798 , 30
798 ,
31 798
ii.
in descending
order (beginning with the biggest)
31 798 , 30 798 , 29
798 ,
28 798
Adition of numbers 522 801 + 123 891 = 646 692
Solution :
522
801
+ 123 891
646 692
Subtraction of numbers 45 019 ˗ 15 831= 29 188
Solution :
45
019
+ 15 831
29 188
Multiplication of numbers 1285 × 125 = 160 625
Solution :
1265
× 125
6425
2570
1285 1
160625
Division of numbers 36 278 ÷ 34 = 1067
Solution :
1 067
34 )-34
227
-204
238
-238
0
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