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Doon Ow!

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Number Sequences 1

What is the 7th:
a) Odd number; 13
b) Square number; 49
c) Prime number. 17

Factors

Find all the factors of:

43

1, 43.

Multiples

Subtract the 7th from the 12th multiples of:

7

35

Polygons

What are the names of regular polygons with:
a) seven sides;
b) eight sides;
c) nine sides.

Heptagon, Octagon and Nonagon (all regular)

Rounding (3sf)

Round to three significant figures:
a) 69.01; 69.0
b) 323356; 323000
c) 46; 46.0
d) 0.004695; 0.00470

Area of a Triangle

Find the area of a triangle that has a base of 3cm and a height of 6cm.

9cm2

Area of a Trapezium

Find the area of a trapezium that has a base of 12cm, a height of 6cm and a top (parallel to base) of 6cm. 54cm2

Fractions (Adding)

Evaluate:

35+79 =11745

Fractions (Multiplying)

Evaluate:

13×46 =29

Fractions (Dividing)

Evaluate:

12÷64 =13

Circle (Vocabulary)

Name the red part.

Circle part Circle part

Venn Diagrams

Describe the red region.

Circle part Circle part

Shape Formulas

What is the formula?

Circle part Circle part

Formulas (Advanced)

What is it?

Circle part Circle part

Fraction to Percentage

Convert this fraction to a percentage.

510 =50%

Circle Area

Find the area of a circle that has a radius of 2cm. Give your answer to three significant figures.

12.6cm2

Circle Circumference

Find the circumference of a circle that has a radius of 8cm. Give your answer to three significant figures.

50.3cm

Decimals (Adding)

Calculate the value of:

9.7 + 2.7

= 12.4

Decimals (Subtracting)

Calculate the value of:

8.1 − 4.9

= 3.2

Decimals (Multiplying)

Calculate the value of:

3.8 × 8.6

= 32.68

Decimals (Dividing)

Calculate the value of:

81.9 ÷ 13

= 6.3

Indices (Simple)

What is the value of:

52

= 25

Indices (Advanced)

What is the value of:

43

=164

Basic Addition

Calculate the value of:

27 + 59

= 86

Basic Subtraction

Calculate the value of:

61 − 29

= 32

Basic Multiplication

Calculate the value of:

84 × 27

= 2268

Basic Division 2

Calculate the value of:

1218 ÷ 29

= 42

Percentage (Of)

Find the value of:

50% of 280

= 140

Standard Form 1

Find the value of:

8.73 × 102

= 873

Highest Common Factor

Find the highest common factor of eighteen and four.

= 2

Times Tables (2-5)

5 × 2 = 10

3 × 5 = 15

9 × 4 = 36

4 × 4 = 16

7 × 4 = 28

8 × 2 = 16

6 × 4 = 24

2 × 3 = 6

Times Tables (2-12)

7 × 4 = 28

4 × 7 = 28

5 × 9 = 45

8 × 11 = 88

6 × 9 = 54

9 × 8 = 72

3 × 11 = 33

2 × 9 = 18

Times Tables (2)

8 × 2 = 16

7 × 2 = 14

3 × 2 = 6

4 × 2 = 8

5 × 2 = 10

6 × 2 = 12

9 × 2 = 18

2 × 2 = 4

Times Tables (3)

4 × 3 = 12

6 × 3 = 18

7 × 3 = 21

9 × 3 = 27

8 × 3 = 24

5 × 3 = 15

3 × 3 = 9

2 × 3 = 6

Times Tables (4)

9 × 4 = 36

8 × 4 = 32

7 × 4 = 28

3 × 4 = 12

5 × 4 = 20

4 × 4 = 16

6 × 4 = 24

2 × 4 = 8

Times Tables (5)

7 × 5 = 35

9 × 5 = 45

4 × 5 = 20

5 × 5 = 25

8 × 5 = 40

6 × 5 = 30

3 × 5 = 15

2 × 5 = 10

Times Tables (6)

6 × 6 = 36

7 × 6 = 42

5 × 6 = 30

8 × 6 = 48

3 × 6 = 18

9 × 6 = 54

4 × 6 = 24

2 × 6 = 12

Times Tables (7)

8 × 7 = 56

9 × 7 = 63

3 × 7 = 21

6 × 7 = 42

4 × 7 = 28

7 × 7 = 49

5 × 7 = 35

2 × 7 = 14

Times Tables (8)

4 × 8 = 32

9 × 8 = 72

3 × 8 = 24

6 × 8 = 48

7 × 8 = 56

5 × 8 = 40

8 × 8 = 64

2 × 8 = 16

Times Tables (9)

8 × 9 = 72

5 × 9 = 45

7 × 9 = 63

9 × 9 = 81

6 × 9 = 54

3 × 9 = 27

4 × 9 = 36

2 × 9 = 18

Times Tables (12)

9 × 12 = 108

5 × 12 = 60

6 × 12 = 72

4 × 12 = 48

3 × 12 = 36

7 × 12 = 84

8 × 12 = 96

2 × 12 = 24

Fractions (Equivalent)

Write this fraction in its simplest form:

612 =12

Fractions (Mixed)

Evaluate:

31256 =223

Pythagoras

Find AB if AC = 5.1m and BC = 6.1m. 3.35m

Trigonometry (Angle)

Find angle BCA if AC = 4.7m and BC = 6.2m. 40.7o

Trigonometry (Side)

Find AB if angle ABC = 46o and BC = 5.3m. 3.68m

Roman Numerals (1-12)

XII - V

Give your answer in Roman numerals.

VII

Roman Numerals (60-100)

LXXI - XX

Give your answer in Roman numerals.

LI

Roman Numerals (Large)

MMDCCXII - MDCCXXXV

Give your answer in Roman numerals.

CMLXXVII

Fraction to Decimal

Convert this fraction to a decimal to 3 significant figures.

16 =0.167

Decimal to Fraction

Convert this decimal to a fraction.

0.76 = 1925

Percentage (Increase)


Increase £80 by 10%

£88

Lowest Common Multiple

What is the lowest common multiple of eight and twenty four.

= 24

Sequence (Arithmetic)

5,16,27,38,49...

Find the:
a) next term; 60
b) nth term; 11n - 6
c) term number 49; 533

Sequence (Geometric)

5,15,45,135,405...

Find the:
a) next term; 1215
b) nth term; 5 × 3n-1
c) term number 9; 32805

Interest (Simple)

If £220 is invested for 7 years with a simple interest rate of 3%, find the amount of interest earned. £46.20

Interest (Compound)

If £200 is invested with an interest rate of 6% compounded annually, find the value of the investment after 6 years. £283.70

Currency Exchange

If £1 is worth $1.37, convert:

a) £120 to dollars; $164.40

b) $180 to pounds; £131.39

Coordinates (Midpoint)

What are the coordinates of the midpoint of the line joining:

(8,2) and (16,4)

(12,1)

Gradient

What is the gradient of the line joining:

(8,5) and (3,10)

1

Coordinates (Square)

Here are the coordinates of 3 vertices of a square, what are the coordinates of the 4th?

(2,1),(7,4),(1,6)

(4,9)

Negative Numbers

a) 10 − 18 = -8
b) 10 × (-6) = -60
c) (11−18)(10−18) = 56
d) 60 ÷ (-6) = -10
e) (-7)2 = 49

Substitution

If p = 5, q = 23 and
r = -8 evaluate:

a) 2q − p = 41
b) pq + r = 107
c) p2 − 5q - r = -82

Equations (Type 1)

Solve:

3x=9

x=3

Equations (Type 2)

Solve:

5x2=18

x=4

Equations (Type 3)

Solve:

8x+4=6x+10

x=3

Equations (Type 4)

Solve:

5(2x+5)11=44

x=3

Equations (Type 5)

Solve:

3(3x+3)=2(5x+2)

x=5

Equations (Simultaneous 1)

Solve:

4x5y=6
5x+5y=30

x=4,y=2

Equations (Simultaneous 2)

Solve:

3x+2y=31
5x+6y=65

x=7,y=5

Equations (Simultaneous 3)

Solve:

2x+2y=2
3x+5y=9

x=7,y=6

Sets (Union)

Find the union of:

{2,4,6,8,10} and
{1,3,6,10,15}

{1,2,3,4,6,8,10,15}

Sets (Intersection)

Find the intersection of:

{1,3,5,7,9} and
{6,7,8,9,10}

{7,9}

Bearings

A plane flies from point A to point B on a bearing of 176o. What bearing would it return on from B to A? 356o

Probability

A number is picked at random from the set

{3,6,9,12,15}

what is the probability it is even? 25

BIDMAS

Evaluate:

(12 − 4)2 + 7 × 9

127

Simplify

Simplify the following by collecting like terms:

2y+2y25y+y2

3y23y

Ratio

Divide 225 in the ratio

8:7

120 and 105

Graph Linear (1)

Draw a rough sketch of the graph of:

y=2x+2

Gradient 2
y intercept 2

Prime Factors

Express the following number as the product of prime numbers:

30

2 x 3 x 5

Percentage (Reverse)

In a sale an item costs £17 after a 15% reduction. What was the original price?

£20

Averages

Find the mean, mode, median and range of the following:

1,3,1,10,5

Mean = 4, mode = 1,
median = 3 and range = 9

Time (Analogue)

What time is this?

Circle part Circle part

Time (Digital)

Sketch a clock face:

Circle part Circle part

Decimals (Recurring)

Write the following recurring decimal as a fraction in its lowest terms.

0.292929... 2999

Percentage (Decrease)


Decrease £140 by 25%

£105

Brackets (Linear)

Expand:

3(9x2)

27x6

Brackets (Quadratic)

Expand:

(3x+2)(3x4)

9x26x8

Factorise (Linear)

Factorise:

48x42

6(8x7)

Factorise (Quadratic 1)

Factorise:

x2+3x4

(x+4)(x1)

Factorise (Quadratic 2)

Factorise:

x216

(x+4)(x4)

Circle Theorems

Which theorem?

Circle part Circle part

Standard Form 2

Find the value of:

4.55 × 10-5

= 0.0000455

Standard Form 3

Write in standard form:

452000

= 4.52 × 105

Standard Form 4

Write in standard form:

0.00192

= 1.92 × 10-3

Sequence (Quadratic)

Find the nth term:

9,21,37,57,81,

2n2+6n+1

Standard Form 5

Multiply 8 × 102
by 6 × 104 and give the answer in standard form.

= 4.8 × 107

Equations (Quadratic 1)

Solve:

x2+2x15=0

x=3 and 5

Equations (Quadratic 2)

Solve this equation giving the solutions to 3 significant figures:

5x23x4=0

x=1.24 and 0.643

Polygon Angles

What is the size of each exterior angle of a regular octagon?

45°

Interior and Exterior angles

Change The Subject

Make g the subject of the formula
e=gh+d

g=h(ed)

Basic Division 1

Calculate the value of:

1075 ÷ 5

= 215

Number Sequences 2

What is the 12th:
a) Cube number; 1728
b) Triangular number; 78
c) Fibonacci number. 144

Square Numbers

What is the square root of

121

11

Prime Numbers

What are the next three prime numbers after
31

37, 41, 43

Last Lesson

Write down something you learnt in the previous mathematics lesson.

Last Week

Write down something you learnt in one of the mathematics lessons last week.

Angles

Calculate x.

Angle diagram Angle diagram

Decimals (Ordering)

Write down these numbers: 4.44, 4.4, 0.44, 4, 4.04, 0.4, 0.04, in ascending order.
0.04, 0.4, 0.44, 4, 4.04, 4.4, 4.44,

Lengths (Ordering)

Write down these lengths: 107cm, 1.8m, 18mm, 1.08m, 17cm, 1.7cm, in order.
1.7cm, 18mm, 17cm, 107cm, 1.08m, 1.8m,

Capacities (Ordering)

Write down these capacities: 200ml, 17cl, 21cl, 173ml, 18cl, 18ml, in order.
18ml, 17cl, 173ml, 18cl, 200ml, 21cl,

Angles with Parallels 1

Angle diagram i = 54

Angles with Parallels 2

Angle diagram a = 132

Rounding (1sf)

Round to one significant figure:
a) 44.46; 40
b) 971049; 1000000
c) 28; 30
d) 0.00178; 0.002

Estimation

Round each value to one significant figure to make an estimate:6.6×931737×90200=430

Pie Charts (1)

A pie chart shows the colours of 10 books. What sector angle represents the
3 red books?
108°

Graph Linear (2)

Straight Line Graph

What is the equation?

y=x4

Pie Charts (2)

A pie chart shows the colours of 45 hats. How many green hats are represented
by a sector
angle of 80°?
10

A Mathematics Lesson Starter Of The Day


Topics: Starter | Number

  • Mr Frost, John Summers High School
  •  
  • The difference of the squares of two consequetive numbers will always equal the sum of those two numbers.

    sum of the numbers:
    a + (a-1) = 2a - 1

    Difference of the square of the numbers
    a2 - (a-1)2 = a2 - (a2 - 2a + 1)
    = 2a - 1
  • Mr Frost, John Summers High School, Flintshire
  •  
  • or

    Difference in squares
    a2 - (a + 1)2 = a2 - (a2 + 2a + 1)
    = 2a + 1

    Sum of the numbers

    a + (a + 1) = 2a + 1
  • David Longman, Bedfordshire Middle School
  •  
  • As an extension of this idea

    a² - b² = (a + b) x (a - b) wherever a is greater than b
  • Steve Eastop, Margate, Kent
  •  
  • The difference between the results of squaring each consecutive number and then subtracting the lesser result from the greater result always results in an ODD INTEGER (i.e. a positive or negative whole number indivisible by two). In other words, the result to such a calculation will always be a member of the set {… -5, -3, -1, 1, 3, 5, 7, 9, 11, ....}. In general, algebraically, let the two consecutive numbers be: (N-1) and (N) respectively.(whereby N is the larger of the two). Then (N)2 - (N-1)2 = (N2) - ((N-1)(N-1)) (expanding and simplifying) = N2 - (N2 - N - N + 1) = N2 - N2 + N + N + 1 = (2N +1). Hence, whatever integral value of N you assign, 2N will always be even and thus (2N + 1) will be odd as already stated above!

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Do they have iPads or Laptops in Lessons?

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Laptops In Lessons

Here a concise URL for a version of this page without the comments.

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Uniqueness Game

 

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