mental maths booklet spring term - storage.googleapis.com
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Mental Maths
Booklet
Spring Term
Name:
Primary 5 Mental Maths Activity Overview Term 2
Week 7 PURPOSE: To develop understanding about position, direction and movement of
shapes, using appropriate vocabulary. Monday Tuesday Wednesday
8 main compass points – locate
and name
Turn body to given number of
degrees e.g. 180
degrees clockwise- what
direction are you facing?
Vocabulary = clockwise and
anticlockwise.
Vocabulary = horizontal,
vertical, diagonal, right left.
e.g. put your left arm up
e.g. draw a diagonal line.
2D shapes and right angles
How many right angles does a
square have, a rectangle,
pentagon, right angled triangle
and a rhombus.
Which 2D shapes do not have
right angles?
Week 8 PURPOSE: To learn by heart the division facts for 2, 3, 4, 5 and 10 times tables.
Monday Tuesday Wednesday Division by 2, 5 and 10.
e.g. 10 ÷ 2; 25 ÷ 5 etc.
fact = all even numbers are
exactly divisible by 2
true or false – these numbers
are exactly divisible by 2: 18,
15, 23, 36, 50
Division by 3 and 4.
Function machine: what number
will come out if we put in: 12,
16, 24?
How many 4s are in 40, 28
etc.
How many 3s are in 21, 12
etc.
Place value, ÷ by 10 e.g
75 ÷ 10 = 7.5; 102 ÷10=
10.2
What is the rule?
Week 9 PURPOSE to learn helpful “tips” for finding division answers.
Monday Tuesday Wednesday Dividing by 2: what is the
rule? All numbers ending with
the digits 0, 2, 4, 6, 8 can
…….
Dividing by 5: numbers ending
in five or 0 are exactly
divisible by 5
Dividing by 10: – numbers
ending with a zero……
To find 2/5 of an amount:
to find the answer, divide
by the 5 and multiply by
the 2 e.g. 2/5 of 15 = 6;
2/5 of 35 = 12
To find ¾ of an amount e.g.
36 divided by 4 and
multiplied by 3 = ?
16 =
40 =
Week 10 PURPOSE: to quickly and confidently read analogue and digital clock times, know the
link between minutes and hours and write/order decimals.
Monday Tuesday Wednesday Be able to read all Analogue
and digital times- extend
to: Add on half an hour; an hour;
ten minutes; 20 minutes; ¾ of
How many minutes in a stated
number of hours?
e.g. in 1 hour; 2 hours; 4
hours?
e.g. ½ hour; 1 ½ hours; 2 ½
hours
Write as a decimal;
Four and a half; three point 6;
five and 7 tenths; a half; 9
tenths; 3 and 2 tenths; 7 and
a half. Order decimals
an hour; 1 hour and a half.
What time is it now? according to size e.g. 0.1,
0.9, 0.4 =
e.g. 2.4, 1.9 and 5.7 =
Week 11 PURPOSE: to embed learning of names of lines and learn what quadrilaterals and
prisms are.
Monday Tuesday Wednesday Horizontal, vertical and
diagonal lines = review what
each word means and be able
to recognise these in our
world.
2d shape with one right angle
e.g. right angled triangle; 2d
shape with no right angles =
circle, oval; equal sides and
angles e.g. square.
2 dimensional shapes: Quadrilateral = a 2d shape
with four straight sides e.g.
square, rectangle, rhombus
, trapezium, parallelogram
and kite.
3 dimensional shapes
A prism is a three
dimensional shape that has the
same cross section all along its
length. E.g. cuboids, cylinders
and triangular prisms.
Week 12 PURPOSE: To develop mental maths strategies to achieve quick and accurate answers
when completing calculations involving zero. Monday Tuesday Wednesday
adding/subtracting multiples of
10. E.g. show me the sum of
250 and 60; total of 160 and
130; subtraction 120 from
240.
Orally, describe how you
reached your answer
Multiplication/division facts
e.g. product of 30 and 80
show me 240 divided by 60;
2400 divided by 60; 150
divided by 10; 1500 divided by
10.
Making 100 e.g. 40 and 60;
120 subtract 20; 500 divided
by 5 etc.
Making 1000 e.g. 900 + 100;
1500-500; 500 x 2; 2000
divided by 2 etc.
Week 7
This week WALT: Develop understanding about
position, directions and movement of shapes, using
appropriate vocabulary
Monday
Label the compass points
Tuesday
Please answer the following questions, using your
compass points.
• I am facing North – I turn 90 degrees clockwise.
What point am I now facing?
• I am facing West – I turn 90 degrees anticlockwise.
What point am I now facing?
• I am facing East – I turn 180 degrees clockwise.
What point am I now facing?
• I am facing North-East – I turn 180 degrees
anticlockwise. What point am I now facing?
Wednesday
Please write the number of right angles the following
shapes have:
• Square
• Rectangle
• Pentagon
• Right-angled triangle
• Rhombus
Which 2D shapes do not have right angles?
Week 8
This week WALT: Revise the division facts for the 2, 3,
4, 5 and 10 times tables.
Monday
24 ÷ 2 = 15 ÷ 3 = 30 ÷ 5 = 14 ÷ 2 =
33 ÷ 3 = 16 ÷ 4 = 32 ÷ 4 = 60 ÷ 5 =
50 ÷ 10 = 45 ÷ 5 = 3 ÷ 3 = 70 ÷ 10 =
21 ÷ 3 = 36 ÷ 4 = 25 ÷ 5 = 20 ÷ 10 =
True or false?
The following numbers are exactly divisible by 2
18, 15, 23, 36, 50 – Write any numbers that might not be divisible by 2.
The following numbers are exactly divisible by 5:
12, 15, 35, 44, 50 – Write any numbers that might not be divisible by 5.
Tuesday
The following numbers have been put in a function machine and divided by 3 – Write the numbers that will come out.
In Out 12 9
15 27
The following numbers have been put in a function machine and divided by 4 – Write the numbers that will come out.
In Out
44
4
24
48
Wednesday
Please answer the following questions
How many 5s are in the following numbers?
• 40
• 35
• 55
• 60
• 10
How many 10’s are in the following numbers?
• 100
• 50
• 40
• 20
• 60
Week 9
This week WALT: Learn helpful “tips” for finding
division answers
Monday
What is the rule?
• All numbers ending with the digits 0, 2 , 4 , 6 , 8
can ……..
• All numbers endings in 5 or 0 can………
• All numbers ending with a zero can……
Tuesday
• Explain how you would find 2/5 (two fifths) of an
amount.
• Find two fifths of 20 – show your working out.
• Find two fifths of 30 – show your working out.
• Find two fifths of 15 – show your working out.
Wednesday
• Explain how you would find ¾ (three quarters) of
an amount.
• Find three quarters of 40 – show your working out.
• Find three quarters of 24 – show your working out.
• Find three quarters of 32 – show your working out.
Week 10
This week WALT: Quickly and confidently read analogue and
digital clock times, know the link between minutes and hours
and write/order decimals.
Monday
WALT: Be able to read all analogue and digital times.
• It is half past 2. Add on half an hour – what time is it now?
• It is 3 o’clock. Add on 15 minutes – what time is it now?
• It is 4 o’clock. Add on 20 minutes – what time is it now?
• It is 7 o’clock. Add 1 hour and a half – what time is it now?
• It is 9 o’clock. A ¾ of an hour – what time is it now?
Tuesday:
Please answer the following questions:
• How many minutes in 1 hour?
• How many minutes in ½ hour?
• How many minutes in 2 hours?
• How many minutes in 4 hours?
• How many minutes in 1 ½ hours?
Wednesday
Please write the following numbers as a decimal
Four and a half
Three point six
Five and seven tenths
A half
Nine tenths
Three and two tenths
Seven and a half
Order the decimals according to size:
• 0.1, 0.9, 0.4
• 2.4, 1.9, 5.7
Week 11
This week WALT: Embed learning of names of lines and
learn what quadrilaterals and prisms are
Monday
Draw a single horizontal, vertical and diagonal line and
label them in the space below.
Tuesday
What is a quadrilateral?
Using a pencil and ruler draw three quadrilaterals in
the space provided and label them.
Wednesday
A prism is a three dimensional shape that has the same
cross section all along its length. Name the following
prisms.
Week 12
This week WALT: Develop mental maths strategies to
achieve quick and accurate answers when completing
calculations involving zero.
Monday
Please answer the following questions. You should be
able to orally describe how you reached your answer.
• Show me the sum of 250 and 60.
• What is the total of 70 and 70?
• What is the total of 160 and 130?
• Subtract 120 from 240.
• What is 350 take away 60?
Tuesday
Please answer the following questions:
What is the product of 30 and 80?
What is the product of 40 and 60?
What is the product of 50 and 90?
What is the product of 70 and 10?
What is the product of 10 and 20?
What is 70 divided by 10?
What is 50 divided by 10?
What is 800 divided by 10?
What is 900 divided by 10?
What is 1200 divided by 100?
Wednesday
Please answer the following questions:
What number needs added to 60 in order to make 100?
What number needs added to 50 in order to make 100?
30 + 70 10 + 90 What is 120 subtract 20?
What is 500 divided by 5?
900 + 10 1500 - 500
500 X 2
2000 ÷ 2