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