Katy Kelly’s Reviews > The secrets of mental math: Everyone can do it in a flash! > Status Update
Katy Kelly
is on page 20 of 123
Really liking this quick mental lessons so far. 'Cutting out numbers to solve addition' is so easy to do!
— Dec 08, 2014 12:52PM
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Katy Kelly
is on page 65 of 123
Halfway. Brain filling. Great techniques but riddled with errors. others are page 50 - c is 216 page 51 - illustration 17 should be 18 page 52 - exercise c. what is 3,4? is this 3.4? answer is still wrong as it says 325 and should be 35 page 60-61 - 26x20 is 528 not 328 (incorrect 3 times) Enjoying this though!
— Dec 08, 2014 01:47PM
Katy Kelly
is on page 42 of 123
incorrect answer c. says 17.28. should be 175.28
— Dec 08, 2014 01:08PM