Whole
SNIF 80.8
SPUT 801.1
GYMBLE 2.37
CHORTLE 9.65
MIMSY 361.00
DOSH 3.71
BLOP 93.64
PLECK 8.4999
LAMBTON 7.58
TUCKLETIK 903.00
Round each of the numbers on the signs to the nearest whole number then add all of your answers together.
Topics: Starter  Approximation  Arithmetic  Rounding
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Previous Day  This starter is for 20 October  Next Day
Snif 81 Sput 801 Gymble 2 Chortle 10 Mimsy 361 
Dosh 4 Blop 94 Pleck 8 Lambton 8 Tuckletik 903 
Would you have got the same answer if you had added all of the original numbers together then rounded off the answer?
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Do you know how to round negative numbers? If values exactly half way between get rounded up should 37.25 be rounded to 37.2 or 37.3? Does ‘rounded up’ mean rounded to the larger value or the value furthest away from zero?
A system of rounding commonly used in bookkeeping and some computing procedures is called ‘round half to even’. In this system half way values are rounded either up or down in order to make the last digit an even number.
So, for example, 37.25 becomes 37.2, 37.15 also becomes 37.2 and −37.25 becomes −37.2 without any doubt.
This method of rounding is also useful when rounding values in large data sets as it evens out the rounding ups and rounding downs for the half way values.
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Have you read Craig's book yet?Craig Barton must surely be the voice of Mathematics teachers in the UK. His wonderful podcasts interviewing the industry experts have culminated in this wonderful book. As Craig says: "I genuinely believe I have never taught mathematics better, and my students have never learned more. I just wish I had known all of this twelve years ago..." more... "How I wish I'd taught Maths" is an extraordinary and important book. Part guide to research, part memoir, part survival handbook, it’s a wonderfully accessible guide to the latest research on teaching mathematics, presented in a disarmingly honest and readable way. I know of no other book that presents as much usable research evidence on the dos and don’ts of mathematics teaching in such a clear and practical way. No matter how long you have been doing it, if you teach mathematics—from primary school to university—this book is for you." Dylan Wiliam, Emeritus Professor of Educational Assessment, UCL. 
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