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Tricks to finding a GCF of one number?
An interesting trick is to subtract the two numbers, as follows: For example, the GCF of 14 and 10 is the same as the GCF of 10 and 4, where 4 is the result of the subtraction. Instead of subtracting several times, you can also get the remainder of a division: 10 divided by 4 gives a remainder of 2.
What is the trick to finding the lowest common multiple?
Example: 30 and 42 Factor them. 2 x 3 x 5 = 30 2 x 3 x 7 = 42 Combine the factors, eliminating duplicates. 2 x 3 x 5 x 7 = 210, the LCM
Find the least number which when divided by 7 gives the reminder 6 when divided by 6 gives reminder 5 when divided by 5 gives reminder 4 and so on?
419 Nachiket Joshi solution: LCM(7,6,5,4,3,2)=420 now subtract 1 frm answer ...............so the answer will be 419..... TRICK: Since the diff between the remainder and dividend is common(1 in this case ) u subtract 1 from the LCM
What order of operations equals 100 using 356254 and 5?
3+5-6-2+5*4*5 will do the trick.3+5-6-2+5*4*5 will do the trick.3+5-6-2+5*4*5 will do the trick.3+5-6-2+5*4*5 will do the trick.
What is 100000x10?
100,000x10=1,000,000. just do the 0s trick. For you beginners out their for multiplying here is a trick. Anything times 10, you just add another 0.
