The weight of a cuboid depends on its colour. What is the weight of the four cuboids, one of each colour, on the scales immediately above? No calculators allowed!
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315g + 125g + 879g + 420g = 1739g
Note to teacher: Doing this activity once with a class helps students develop strategies. It is only when they do this activity a second time that they will have the opportunity to practise those strategies. That is when the learning is consolidated. Click the button above to regenerate another version of this starter from random numbers.
The Starter above was redesigned in 2014. The original starter contained some slightly larger numbers:
DIVIDE and ADD
1384 ÷ 8
3059 ÷ 19
2040 ÷ 24
25795 ÷ 385
Find the four quotients above then add your answers together. No calculators allowed!
Casio Classwiz Calculator
There is currently a lot of talk about this new calculator being the best in its price range for use in the Maths classroom. The new ClassWiz features a high-resolution display making it easier to view numerical formulas and symbols but it isn't a graphical calculator as such (it has the capacity to draw graphs on your smart phone or tablet, via a scannable QR code and an app).
As well as basic spreadsheet mode and an equation solving feature you also get the ability to solve quadratic, cubic or quartic polynomial inequalities and the answer is given just as it should be written down, using the correct inequality symbols!
This calculator has a high-performance processor and twice the memory of previous models ensuring speedy operation and superior computational power.more...
Teacher, do your students have
access to computers?
Here a concise URL for a version of this page without the comments.
Here is the URL which will take them to a pupil exercise on division.
The answer to the extension activity is 173 + 161 + 85 + 67 = 486