Moms Maths Manual PPT Grd 4 - sample

3. Complete the diagram to represent the following:

TTH TH H T U

12 453

TTH TH H T U

46 001

4 of 4© www.momsmathsmanual.co.za

50000

50000+ + +

300020040653 246

53 246 = 50 000 + 3000 + 200 + 40 + 6

You must have plus (+) signs between the numbers, they act as invisible elastic bands trying to pull the number together again.

3000200406+

© www.momsmathsmanual.co.za

5. Fill in the correct relationship sign <=>

a) 285 200 + 70 + 5

b) 4 617 4 000 + 100 + 60 + 7

c) 3 094 3 000 + 90 + 4

d) 7 652 (7 × 1 000) + (5 × 100) + (6 × 10) + (2 × 1)

e) 136 146

f) 768 788

>>=

<

><

275

4 167

30947562


The bus and motorbike are low on petrol.

The driver of the bus will fill up at the _______________The motorbike rider will fill up at the ________________

Rounding off to the nearest 10

20 21 22 23 24 25 26 27 28 29 30

TotalBP

50 51 52 53 54 55 56 57 58 59 60

The driver of the bus will fill up at the _______________The motorbike rider will fill up at the ________________Total

BP


Number and Geometric Patterns

Complete the following table. What operation (rule) takes place between the input and output?

33

47

52

17

19

Operation

43

57

62

27

29

+ 10

43 – 33 = 1033 + 10 = 43

Operation is + 10

Input Output

62

27

29


O’clock5 past

10 past

Quarter past

20 past

25 pastHalf past

25 to

20 to

Quarter to

10 to

5 to

PastTo

The minute hand


Subtraction (borrowing/take away)

Example (borrow/take away)

Largest number is always on top!

Also remember:– number written first ison top.

- number written secondis at the bottom.

When subtracting – start with your units (U).

Th H T U

4 9 5 9

- 3 8 6 4

4 959 – 3 864 =

1 2× 1 4

4 8+ 1 2 0

1 6 8

Long Multiplication

0

× 1 0


÷ 18 12 14 8 10 2 ÷Start

3 9 6 7 4 5 1 2

12 4

9 3

15 5

7 9 10 ÷ 4 6 1 2

21 27 30 4 16 24 4 8

12 3

40 10

÷ 40 15 30 25 10 ÷ 20 32 8

6 8 3 6 5 2 5 5

18 3

12 2

36 6

24 4

30 5 8 ÷ 3 2 10 5 7

48 7 21 14 70 35 49

What makes a Rand?

20c 20c 20c 20c 20c


Duration:Show the time that has passed between these departure and arrival times.

Flight time (How long was the flight?)

Depart 1:30 pm Arrive 3:00 pm

QLeaveTake off

ArriveLand

How long was the flight?Duration of flight:

1½ hours or 1 hour 30 minutes

3 of 4


Numerators and Denominators

Numerators Denominators

Numerators Denominators


1 10 = 0,_1

Using the pattern for fractions with a denominator of 10:

If a number is over the denominator 10, you must ONLY use one place after the comma.

5 10 = 0,_5

17 10 = 0 ,_17


If you have a shape with three (3) sides, example a triangle, make sure you add all three of the numbers together.

P = 4cm + 4cm + 3cm

Perimeter = 11cm

If you have a shape with four (4) sides, example a rectangle, make sure you add all four of the numbers together.

P = 4cm + 3cm + 4cm + 3cm

Perimeter = 14cm


Terminology

Face

Edge is where two faces meet

Vertices are where edges meet


How many 5 ml teaspoons will be used to fill the 20 ml container?

How many 5 ml teaspoons will be used to fill the 30 ml container?

How Many Teaspoons?

30ml

20ml

6 spoon will fill the container

4 spoon will fill the container

Moms Maths Manual PPT Grd 4 - sample

Education

Transcript of Moms Maths Manual PPT Grd 4 - sample