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Long addition mean addition of a lot of numbers. When you have a lot of number for addition then try to arrange the number for addition. Try to made tens, hundreds, thousand, ... Let us see the following examples.

• 4 + 3 + 2 + 7 + 9 + 11 + 8
• That can be rearranged as

= (3 + 7) + (9 + 11) + (2 + 8) + 5

= 10 + 20 + 10 + 5

= 45

The above example may also written as In such case add the numbers as following • 15 + 26 + 34 + 45 + 19 + 22 + 48
• = (15 + 45) + (26 + 34) + 19 + (22 + 48)

= 60 + 60 + 19 + 70

= 209

The above example may also written as In such case add the numbers as following ##### SHORTCUT TRICKS (Division)
• Divisible by 2 Shortcut trick
• Divisible by 3 Shortcut trick
• Divisible by 4 Shortcut trick
• Divisible by 5 Shortcut trick
• Divisible by 6 Shortcut trick • Divisible by 7 Shortcut trick • Divisible by 8 Shortcut trick • Divisible by 9 Shortcut trick
• Divisible by 10 Shortcut trick

##### Worksheets (Solved)

###### Integration     