2 out of 3
What is the mean of 1.2 recurring and 2.1 recurring?
2 out of 3
Find a simple way to compute this long fraction.
3 out of 3
Which dilutions can you make using only 10ml pipettes?
1 out of 3
Which rational numbers cannot be written in the form x + 1/(y + 1/z) where x, y and z are integers?
2 out of 3
Can you tangle yourself up and reach any fraction?
1 out of 3
Relate these algebraic expressions to geometrical diagrams.
1 out of 3
Can you use the given image to say something about the sum of an infinite series?
2 out of 3
When if ever do you get the right answer if you add two fractions by adding the numerators and adding the denominators?
3 out of 3
We only need 7 numbers for modulus (or clock) arithmetic mod 7 including working with fractions. Explore how to divide numbers and write fractions in modulus arithemtic.
