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Whiteboardmaths.com © 2004 All rights reserved 5 7 2 1.

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Presentation on theme: "Whiteboardmaths.com © 2004 All rights reserved 5 7 2 1."— Presentation transcript:

1 Whiteboardmaths.com © 2004 All rights reserved 5 7 2 1

2 F F F F E E E E D D D D C C C C NUMBER ALGEBRA SHAPE SPACE & M
HANDLING DATA F F F F E E E E SHAPE and SPACE HANDLING DATA D D D D SHAPE and SPACE HANDLING DATA C C C C SHAPE and SPACE HANDLING DATA

3 Multiply the two numbers on the spinners together.
10 1 2 8 3 7 4 6 5 9 10 1 2 8 3 7 4 6 5 9 Back to board Answer

4 Multiply the two numbers on the spinners together.
10 1 2 8 3 7 4 6 5 9 10 1 2 8 3 7 4 6 5 9 32 Back to board

5 Put the following oC temperatures in order of size smallest to largest.
-3 10o 8 0o -10o 4 -10 Back to board Answer

6 Put the following oC temperatures in order of size smallest to largest.
-3 10o 8 0o -10o 4 -10 - 10, -3, 0, 4, 8 Back to board Explain?

7 Put the following oC temperatures in order of size smallest to largest.
-3 10o 8 0o -10o 4 -10 - 10, -3, 0, 4, 8 Back to board

8 23 8 Write the improper fraction below as a mixed number.
Back to board Answer

9 2 23 8 7 8 Write the improper fraction below as a mixed number.
Back to board

10 Back to board Answer Date Amount Jan 1st 2006 £1000 Jan 1st 2007
Jenny has £1000 in her building society account on 1st January The interest rate is fixed at 5%. She intends to leave the money in the account for 3 years without making any withdrawals (a) What do you multiply the £1000 by to get the amount at the end of the first year? (b) What is balance for her account on 1st January Date Amount Jan 1st 2006 £1000 Jan 1st 2007 Jan 1st 2008 Jan 1st 2009 Back to board Answer

11 Back to board Explain? Date Amount Jan 1st 2006 £1000 Jan 1st 2007
Jenny has £1000 in her building society account on 1st January The interest rate is fixed at 5%. She intends to leave the money in the account for 3 years without making any withdrawals (a) What do you multiply the £1000 by to get the amount at the end of the first year? (b) What is balance for her account on 1st January Date Amount Jan 1st 2006 £1000 Jan 1st 2007 Jan 1st 2008 Jan 1st 2009 (a) 1.05 (b) £ Back to board Explain?

12 Back to board Date Amount Jan 1st 2006 £1000 Jan 1st 2007 Jan 1st 2008
Jenny has £1000 in her building society account on 1st January The interest rate is fixed at 5%. She intends to leave the money in the account for 3 years without making any withdrawals (a) What do you multiply the £1000 by to get the amount at the end of the first year? (b) What is balance for her account on 1st January Date Amount Jan 1st 2006 £1000 Jan 1st 2007 Jan 1st 2008 Jan 1st 2009 (a) 1.05 £1050 x 1.05 x 1.05 x 1.05 £ £ (b) £ (a) An increase of 5% means that the new amount is 105% of the original value and a 105% = 105/100 = 1.05 as a multiplier. (b) Apply the multiplier repeatedly to get the new amount at the end of each year. Back to board Notice that 1000 x gets the answer more efficiently.

13 8 x 9 = 72 72  9 = ? Back to board Answer

14 8 x 9 = 72 72  9 = ? 8 Back to board

15 The number sequence below is called the Fibonacci Sequence and is named after a mathematician who lived many hundreds of years ago. Each number in the sequence is the sum of the two previous numbers. Work out the next 3 numbers of this sequence. 1, 1, 2, 3, 5, 8,… Back to board Answer

16 The number sequence below is called the Fibonacci Sequence and is named after a mathematician who lived many hundreds of years ago. Each number in the sequence is the sum of the two previous numbers. Work out the next 3 numbers of this sequence. 1, 1, 2, 3, 5, 8,… 13, 21, 34 Back to board

17 The first 4 terms of a number sequence are shown below
The first 4 terms of a number sequence are shown below. Describe in words the rule that gives the nth term in the sequence. 1 2 3 4 ……… nth 4, 7, 10, 13,……… Back to board Answer

18 Multiply the term number by 3 and add 1
The first 4 terms of a number sequence are shown below. Describe in words the rule that gives the nth term in the sequence. 1 2 3 4 ……… nth 4, 7, 10, 13,……… Multiply the term number by 3 and add 1 Back to board

19 7 + 5(3x + 6) - 2(x + 4) - 3 Simplify the expression below:
Back to board Answer

20 7 + 5(3x + 6) - 2(x + 4) - 3 Simplify the expression below: 13x + 26
Back to board Explain?

21 7 + 5(3x + 6) - 2(x + 4) - 3 7 +15x + 30 - 2x - 8 - 3 13x + 26
Simplify the expression below: 7 + 5(3x + 6) - 2(x + 4) - 3 Expanding each bracket gives: 7 +15x x Collecting like terms gives: 13x + 26 13x + 26 Back to board

22 What is the volume of the shape shown?
= 1 cm3 Back to board Answer

23 = 1 cm3 24 cm3 What is the volume of the shape shown? Back to board
Explain?

24 = 1 cm3 12 8 4 24 cm3 What is the volume of the shape shown?
Back to board

25 What is the order of rotational symmetry for the shape below?
Back to board Answer

26 3 What is the order of rotational symmetry for the shape below?
Back to board Explain?

27 What is the order of rotational symmetry for the shape below?
3 2 1 Back to board

28 Match the congruent shapes.
B C D E F G Back to board Answer

29 Match the congruent shapes.
B C D E F G Back to board

30 Calculate the volume of the cylinder. (1 dp)
6 cm 8 cm Back to board Answer

31 Calculate the volume of the cylinder. (1 dp)
6 cm 8 cm 904.8 cm3 Back to board Explain?

32 V = r2h Calculate the volume of the cylinder. (1 dp) 904.8 cm3
Remember V =  x 62 x 8 = 904.8 cm3 Back to board

33 In how many matches did the batsman score between 20 and 39 runs?
Runs scored by an opening batsman in one-day cricket matches last season. 20 15 Frequency 10 5 0 - 19 Runs Scored Answer Back to board

34 In how many matches did the batsman score between 20 and 39 runs?
Runs scored by an opening batsman in one-day cricket matches last season. 20 15 Frequency 9 10 5 0 - 19 Runs Scored Back to board

35 Prof and Beaky are playing a dart game at the fair
Prof and Beaky are playing a dart game at the fair. Beaky throws a dart at random at the cards. What is the probability that she hits a picture card? Back to board Answer

36 Prof and Beaky are playing a dart game at the fair
Prof and Beaky are playing a dart game at the fair. Beaky throws a dart at random at the cards. What is the probability that she hits a picture card? 5/9 Back to board Explain?

37 5 of the cards are picture cards out of a total of 9 cards.
Prof and Beaky are playing a dart game at the fair. Beaky throws a dart at random at the cards. What is the probability that she hits a picture card? 5/9 5 of the cards are picture cards out of a total of 9 cards. Back to board

38 Red Blue White Silver Black Back to board Answer
Prof did a survey about the colour of cars passing underneath a motor way bridge. From the data he constructed the table of probabilities shown below. Use the table to calculate the probability that a car passing underneath the bridge will be silver. Red Blue White Silver Black 0.2 0.17 0.15 ? 0.1 Back to board Answer

39 0.38 Red Blue White Silver Black Back to board Explain?
Prof did a survey about the colour of cars passing underneath a motor way bridge. From the data he constructed the table of probabilities shown below. Use the table to calculate the probability that a car passing underneath the bridge will be silver. Red Blue White Silver Black 0.2 0.17 0.15 ? 0.1 0.38 Back to board Explain?

40 0.38 Red Blue White Silver Black Back to board
Prof did a survey about the colour of cars passing underneath a motor way bridge. From the data he constructed the table of probabilities shown below. Use the table to calculate the probability that a car passing underneath the bridge will be silver. Red Blue White Silver Black 0.2 0.17 0.15 ? 0.1 0.38 1 - ( ) Remember: For mutually exclusive events the total of all probabilities is 1. Back to board

41 Christmas raffle tickets are sold to students in a school as shown in the table below (a) What is the probability that the winning ticket will be green? (b) What is the probability that the winning ticket will show the number 13? Ticket Colour Numbers used Year 7 red 1 to 85 Year 8 blue 1 to 80 Year 9 green 1 to 75 Back to board Answer

42 Christmas raffle tickets are sold to students in a school as shown in the table below (a) What is the probability that the winning ticket will be green? (b) What is the probability that the winning ticket will show the number 13? Ticket Colour Numbers used Year 7 red 1 to 85 Year 8 blue 1 to 80 Year 9 green 1 to 75 (a) 75/240 (b) 3/240 Back to board Explain?

43 Christmas raffle tickets are sold to students in a school as shown in the table below (a) What is the probability that the winning ticket will be green? (b) What is the probability that the winning ticket will show the number 13? Ticket Colour Numbers used Year 7 red 1 to 85 Year 8 blue 1 to 80 Year 9 green 1 to 75 (a) 75/240 (b) 3/240 (a) 75 tickets are green out of a total of 240. (b) There are 3 tickets numbered 13 out of a total of 240. Back to board


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