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##### Srinivasa Ramanujan (1887 – 1920) grew up in India, where he received very little formal education in mathematics. Yet, he managed to develop new ideas in complete isolation, while working as a clerk in a small shop. After a few failed attempts to contact other mathematicians, he wrote a letter to the famous G.H. Hardy. Hardy immediately recognised Ramanujan's genius, and arranged for him to travel to Cambridge in England. Together, they made numerous discoveries in number theory, analysis, and infinite series. Unfortunately, Ramanujan soon fell ill and was forced to return to India, where he died at the age of 32. During his short life, Ramanujan proved over 3000 theorems and equations, on a wide range of topics. His work created entirely new areas of maths, and his notebooks were studied by other mathematicians for many decades after his death.

Lesson 13 - Direct/Inverse Proportion & Best BUy

1. 80 ÷ 5 2. 72 + 32 3. ∛10004. What is the largest square number under 100?5. Expand −3 ( 2𝑥 + 5 ) 6. Split £20 in the ratio 7 : 37. Estimate the size of the pencil. 8. Round 3.528 to 1 decimal place.

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Proportion

Proportion

Proportion

Proportion

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Inverse Proportion 2: y = k/x [MF16.08]

Direct Proportion 2: y = kx [MF16.06]

unit Conversions

Proportion

Proportion

Proportion

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Inverse Proportion 2: y = k/x [MF16.08]

Direct Proportion 2: y = kx [MF16.06]

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unit Conversions

Past Paper questions

Past Paper questions

Past Paper questions

##### y = 2x

Proportionality on graphs

Ordinary to Standard Form [MF14.04]

Standard Form to Ordinary [MF14.03]

Dividing with Standard Form [MF14.09]

Multiplying with Standard Form [MF14.08]

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Lesson 2 - Standard Form