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## Blog posts : "11CM1 Homework"

### Extra Notes on Transformations

The following links are my Year 10 lesson notes on transformations. Reading through them will help you revise transformations:

### Estimating

When GCSE questions ask you to estimate the result of a numerical calculation on the non-calculator paper you should proceed as follows:

Round the numbers in the problem to 1 significant figure before performing calculations.

Be careful if you have a number less than 1 for a denominator. For example, if the denominator = 0.4 then multiply the numerator and denominator by 10 so that you end up dividing by the whole number 4. Estimating Questions

Estimating Solutions

Please complete this week and self-mark from the solutions provided.

### Use of Calculator

When asked to use your calculator to evaluate an expression, use brackets to group terms in a numerator, terms in a denominator, and terms under a square root sign. Leaving out brackets risks the order of precedence rules on your calculator causing it to evaluate calculations in an inappropriate order for the question.

Use of Calculator Questions

Use of Calculator Solutions

Please complete this week and self-mark from the solutions provided.

### Simultaneous Equations Problems

Four of the following problems require the use of simultaneous Linear Equations but there is an odd one out.

Simultaneous Equations Problems

Simultaneous Equations Problems Solutions

Please complete this week and self-mark from solutions provided.

### Expansion of Trinomials

Please complete the following 5 questions on file paper and hand in tomorrow Wednesday 16 January.

1.   (x + 2)(x + 3)(x + 4)

2.   (x + 1)(x + 4)(x + 5)

3.   (x - 1)(x + 2)(2x + 3)

4.   (2x - 1)(x - 3)(x + 2)

5.   (x - 3)(x - 3)(x - 3)

Solutions

Here is is short video clip showing two worked examples (4:35):

Transcript of Video

### Venn Diagrams

For Monday 10 December please complete the last 3 questions of Venn Diagrams

Here is the complete exercise without answers if you wish to work through the questions again when revising.

### Factorising 3 Term Quadratic With Multiple X Squared

Everyone in 11CM1 must be able to factorise a three term quadratic with a multiple x squared term.

Video clip showing two worked examples (5:31):

Transcript of Video Questions

Please complete Homework Exercise of 10 Questions for Tuesday 4 December.

Solutions to Homework Exercise

### Corrections to Mock Set 3 Paper 2

Please review the corrections you did for Mock Paper 2 against my solutions.

If you wish to do the paper again in the future here is a question paper.

20 Blog Posts