Tips and Ticks Divisibility Rule


Tips and Ticks Divisibility Rule

  • What is the divisibility by 2 Rule?
    • Even numbers are multiples of 2. A number is even if ends in 0,2,4,6, or 8.
  • What is the divisibility by 3 rule?
    • A number is divisible by 3 if the sum of its digits is divisible by 3.
    • 372, for instance, is divisible by 3 since sum of its digits (3+7+2) is 12. And 12 is divisible by 3.
  • What is the divisibility by 4 rule?
    • A number is divisible by 4 if the number\'s  last two digits are divisible by 4
    • 9,312, for instance, is divisible by 4 since its last 2 digits are 12. And 12 is divisible by 4.
  • What is the divisibility by 5 rule?
    • A number is divisible by 5 if its last digit is a 0 or 5.
  • What is the divisibility by 6 rule?
    • Since 6 is a multiple of 2 and 3, the rules for divisibility by 6 are a combination of the rule for 2 and the rule for   3.
  • Divisibility by 8 Rule
    • A number passes the test for 8 if the last three digits form a number is divisible 8.
  • Divisibility by 9 Rule
    •  A number is divisible by 9 if the sum of the digits are evenly divisible 9.
  •  Divisibility by 10 Rule
    •   A number passes the test for 10 if its final digit is 0
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Science Subjects Memory Code

കുലീന ലോഹങ്ങള്‍ .

Code: വെള്ളിയാഴ്ച സുവര്‍ണ്ണ ഫ്‌ളാറ്റില്‍ വരും (വെള്ളി, സ്വര്‍ണ്ണം, പ്ലാറ്റിനം).
ദ്രാവകാവസ്ഥയിലുള്ള ലോഹങ്ങള്‍ .

Code: MG ഫ്രാന്‍സിസ്‌ (മെര്‍ക്കുറി, ഗാലിയം, ഫ്രാന്‍സിയം, സീസിയം).
ഭൂമിയില്‍, പ്രപഞ്ചത്തില്‍, അന്തരീക്ഷത്തില്‍ ഏറ്റവും കുടുതലുള്ള മൂലകങ്ങള്‍ .

Code: BO PH AN (B - ഭൂമിയില്‍ O -ഓക്‌സിജന്‍, P - പ്രപഞ്ചത്തില്‍ H -ഹൈഡ്രജന്‍, A - അന്തരീക്ഷത്തില്‍ N -ന...

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Trick to remember the name of G-8 Countries.

Code: ABC FIR GJ.

A : America .

B : Britain.

C : Canada.

F : France.

I : Italy.

R : Russia.

G : Germany.

J : Japan.

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BODMAS Rule

BODMAS is an acronym and it stands for Bracket, Of, Division, Multiplication, Addition and Subtraction. .

This explains the order of operations to solve an expression. According to Bodmas rule, if an expression contains brackets ((), {}, []) we have to first solve/simplify the bracket followed by of (powers and roots etc.), then division , multiplication , addition and subtraction from left to right. .

Example :.

7 + (6 × 52 + 3) =   7 + (6 × 25 + 3).

7 + (150 + 3).

7 + (153).

7 + 153 .

Ans: 160. .

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