10 L Maths Mrs Russell Week of 2906

10 L Maths Mrs Russell Week of 29/06

Tuesday 30/06 Rounding and Place Value To understand place value and be able to round to significant figures

Use all the numbers and a mixture of plus, subtract, divide, multiply to make the number 6. A possible answer is on the next slide

In the next topic, we’re going to be looking at very large and very small numbers. This first lesson is a reminder about place value and rounding to a given number of significant figures.

Exercise 1

Answers Exercise 1

Exercise 2

Answers Exercise 2

Watch this video about rounding to significant figures on Corbettmaths https: //corbettmaths. com/2013/09/07/rounding-significantfigures/ If you want some more help, try this My. Maths lesson on rounding Click here When you are confident, do Exercise 3 on the next slide.

Exercise 3

Answers Exercise 3

Wednesday 01/07 Multiplying by powers of 10 To be able to multiply and divide by power of 10

Multiplying by powers of 10 Watch the video from the link below https: //corbettmaths. com/2013/06/06/multiplication-by-powers-of-ten/

Complete these questions, showing all method as usual Continued on next slide

Complete these questions, showing all method as usual

Dividing by powers of 10 Watch this video: https: //corbettmaths. com/2013/05/19/division-by-powers-of 10/

Complete these questions, showing all method as usual

Extension

Answers Multiplying https: //corbettmaths. com/wpcontent/uploads/2019/08/Multiply-by-powers-of-10. pdf Dividing https: //corbettmaths. com/2016/08/02/textbook-answersdividing-by-powers-of-10/ Extension

Thursday 02/07 Standard Form To understand what standard form is and be able to write large standard form numbers as normal numbers and vice versa.

Do these without a calculator. Answers are on the next slide

Standard form Watch the video. We will be focusing on large numbers today so don’t worry too much about the negative powers of 10. https: //corbettmaths. com/2013/04/28/standard-form/ For some further help, BBC Bitesize has some examples Click here

Notes and Examples – copy these into your notebook 4 digits 4 zeros Number between 1 and 10

7 digits 7 zeros Number between 1 and 10 Write 40 in SF

Do the questions below, showing some method as usual. Exercise 1 Write these large numbers in standard form.

Answers Exercise 1

Power 5 Power 9 5 zeros 9 zeros 5 digits 9 digits

Power 3 3 zeros 3 digits

Do the questions below, showing some method as usual. Exercise 2 Write these as ordinary numbers.

Answers Exercise 2

Hopefully you are now happy working with LARGE numbers. Now try this coded message. Choose the correct answer from each row and write down the letter. It should spell out some words! Email me your answer. This grid first Then this one.