Without a calculator, work out the cheapest route from Los Angeles to Las Vegas:
You can move from square to square horizontally or vertically (but not diagonally). Each time you enter a square you have to pay the amount shown.
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There are 10 different five step routes from Los Angeles to Las Vegas.
Los Angeles - 9 - 34 - 78 - 47 - Las Vegas [Total = 168]
Los Angeles - 9 - 34 - 20 - 47 - Las Vegas [Total = 110]
Los Angeles - 9 - 34 - 20 - 91 - Las Vegas [Total = 154]
Los Angeles - 9 - 35 - 20 - 47 - Las Vegas [Total = 111]
Los Angeles - 9 - 35 - 20 - 91 - Las Vegas [Total = 155]
Los Angeles - 9 - 35 - 22 - 91 - Las Vegas [Total = 157]
Los Angeles - 45 - 35 - 20 - 47 - Las Vegas [Total = 147]
Los Angeles - 45 - 35 - 20 - 91 - Las Vegas [Total = 191]
Los Angeles - 45 - 35 - 22 - 91 - Las Vegas [Total = 193]
Los Angeles - 45 - 81 - 22 - 91 - Las Vegas [Total = 239]
So the cheapest route costs 110 (dollars). Here is a way of getting that total:
You can view another version of this starter generated from random numbers. Puzzle 1 is the easiest, puzzle 5 is very difficult.
Alternatively you can change the size of the grid to make the problem more complex:
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Texas Instruments Nspire Calculator
This handheld device and companion software are designed to generate opportunities for classroom exploration and to promote greater understanding of core concepts in the mathematics and science classroom. TI-Nspire technology has been developed through sound classroom research which shows that "linked multiple representation are crucial in development of conceptual understanding and it is feasible only through use of a technology such as TI-Nspire, which provides simultaneous, dynamically linked representations of graphs, equations, data, and verbal explanations, such that a change in one representation is immediately reflected in the others.
For the young people in your life it is a great investment. Bought as a gift for a special occasion but useful for many years to come as the young person turns into an A-level candidate then works their way through university. more...
Apple iPad Pro
The analytics show that more and more people are accessing Transum Mathematics via an iPad as it is so portable and responsive. The iPad has so many other uses in addition to solving Transum's puzzles and challenges and it would make an excellent gift for anyone.
The redesigned Retina display is as stunning to look at as it is to touch. It all comes with iOS, the world's most advanced mobile operating system. iPad Pro. Everything you want modern computing to be. more...
Before giving an iPad as a Christmas gift you could add a link to iPad Maths to the home screen.
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