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Mathematics, 15.09.2019 19:10 cuppykittyy

(or 102 ) = 100
2. the problem: you know that 10 x 10
(a) calculate 9 x 11 ?
what do you notice?
(b) calculate the following. what do you notice? why is
this?
© 202 and 19x21
(ii) 502 and 49x51
(iii) 1002 and 99 x 101

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(or 102 ) = 100
2. the problem: you know that 10 x 10
(a) calculate 9 x 11 ?
wha...
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