Question

I have to memorize all the square numbers from 1-30
1^2
2^2
3^2
all the way to
30^2

Is there a trick to memorizing it or being able to solve it quick?

Answer 1

Multiplying them... just that. No need to memorize them, you can do it by hand

Answer 2

but my math teacher told me so.

Answer 3

You could use flash cards.

Answer 4

how can i do that in just 1 day ?

Answer 5

write them over and over until you can memorize them all without looking at anything...get your parents to do flash cards with you or either get them to write them down for you and then time you for 1 minute to see how many you get correct :) good luck!!!

Answer 6

okay

Answer 7

but any other (easy) way ?

Answer 8

Well I remember in elementary school we had to re-memorize the alphabet and the time tables.
Just use the same technique you chose to remember those to remember these.

Answer 9

i don't have much time.

Answer 10

Memorizing 1^2 through 10^2 shouldn't be that difficult (just practice a lot with them)

To get 11^2, you could multiply 11*11 = 121

or you can add on 2x+1 = 2*10+1 = 21 to 100 to get 121 (notice how x = 10)

now you know 11^2 = 121

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To get 12^2, you can multiply 12*12 = 144

or you can add on 2x+1 = 2*11+1 = 23 (now x = 11)

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keep the pattern going

12^2 = 144
13^2 = 144+25 = 169

notice how 25 = 2*12+1 and how we have that 12 in there

so basically you are adding odd numbers to the last perfect square to get the next perfect square

14^2 = 169+27 = 196
15^2 = 196+29 = 225

etc etc

Answer 11

You know if you don't actually won't to do the math each time.

Answer 12

also the squares from 1 to 30
shouldn't that just be 1^2 to 5^2?

Answer 13

1^2=1
2^2=4
3^2=9
4^2=16
5^2=25
because 6^2=36>30

Answer 14

ahh ! but my teacher told me to do that.

Answer 15

ok guys , well thanks for ur replies.