Write any you find in your maths book, then add them as a comment to this blog post – eg. 25 = 5×5

See if you can explain what you notice in comments.

Write any you find in your maths book, then add them as a comment to this blog post – eg. 25 = 5×5

See if you can explain what you notice in comments.

© 2017 Chestnut 2 – a year 5 ORCS blog

Theme by Anders Noren — Up ↑

Translate ยป

October 4, 2017 at 12:13 pm

I chose 8 and 9

8×8 = 64

9×9 = 81

81-64 = 17

I chose 5 and 6

5×5=25

6×6=36

36-25=11

I chose 7 and 5

7×7=49

5×5=25

49-25=25

October 4, 2017 at 12:19 pm

the last number does not work

I chose 7 and 6

7×7=49

6×6=36

49-36=13

October 4, 2017 at 12:19 pm

so its crazy but say i have 2,3

2 squared is 4 and 3 squared is 9

9-4=5 and the wierd part

2+3=5 and so that is how you can add squares and find them

also if you dont know sq

October 4, 2017 at 12:21 pm

so its crazy but say i have 2,3

2 squared is 4 and 3 squared is 9

9-4=5 and the wierd part

2+3=5 and so that is how you can add squares and find them

also if you dont know your second squared number try this

4+2+3=9 also helpful.

October 4, 2017 at 12:23 pm

on the school board we found an easier way to find square numbers this is how you do it:

for example if you want to find the square number of 8 find out what the number before your number in this case its 7 and it equals 49 then you do 49+7+8=64 and 64 is the squared number of 8.

October 4, 2017 at 12:25 pm

on the board at school we worked out an easier way to find square numbers e.g. 12×12 for example if you times a number by itself you can find the difference between the squared number and the number that you get by timsing it by itself.

October 4, 2017 at 12:26 pm

6,7

6 x 6=36

7 x 7=49

49-36=13

6 + 7=13

October 4, 2017 at 1:53 pm

Can you explain what you noticed? Is one example enough to prove it?

October 4, 2017 at 12:29 pm

i have notice that the difference between the numbers for eg 64 81 what ever the anwser = the difference between them

October 4, 2017 at 12:29 pm

its hard and many people don’t know what this type of maths is but for instance.

6,7 6×6=36 36+6+7=49

7×7=49 49-36=13