SLIDE 1
Arithmetic paper 4 Once you have completed the arithmetic paper, - - PowerPoint PPT Presentation
Arithmetic paper 4 Once you have completed the arithmetic paper, - - PowerPoint PPT Presentation
Arithmetic paper 4 Once you have completed the arithmetic paper, use the slides to help you to understand where you have made your mistakes. Are your scores improving each week? You will need to subtract 100 from the hundreds column. 800 -
SLIDE 2
SLIDE 3
3 x 9 = 27 30 x 9 = 270 2 x 9 = 18 32 x 9 = 288
288
Remember the denominator stays the same. 9 11
SLIDE 4
Remember the denominator stays the same. 6 10 5 1 1 8 2 9 0 4 + 2
1
2
1
8 8022
SLIDE 5
You must know your times tables to 12 x 12. 8 6 2 9 7 6 1
- 8
1 5
6
7 1
8 7
7868
54
SLIDE 6
73
2 9 3 x 7 1
2
5
6
2 0 2051
SLIDE 7
We must move the digits 2 places to the right as we are dividing by 100. 8 . 3 3 0 . 0 9 2
1
4 . 8 8.42 + T O t
th
h
th
9 3 3 9
0.93
SLIDE 8
You can use a bar model to help you with this. First, you must find 1/3 of 66.
44
66 3 = 22 22 x 2 = 44 ÷ 22 22 22 66
SLIDE 9
3 9 3 8 1 7 4 9 2
- 1
9
7 1 2
8
1 8
8 1 3
31,889 69,500
SLIDE 10
534,629
4 7 8 2 3 7 5 6 3 9 2 + 9 2
1
6 4
1
3
1
5 5 x 5 x 5 = 125
SLIDE 11
3 x 40 = 120 30 x 40 = 1200
1200
56 7 = 8 560 70 = 8 ÷ ÷
8
Use known facts to help you to calculate quickly.
SLIDE 12
Th H T O t
th
h 6 7 9 6 7 9
6790
As we are multiplying by 1000, we must move the digits 3 places to the left. A zero is needed as a place holder.
SLIDE 13
Steps to success Find the lowest common denominator. Convert both fractions. In this case 3 will remain the same. Remember, when converting, whatever has been done to the denominator, must be done to the numerator. Calculate 8 3 4 3 8 +
x2 x2
6 8 + 3 8 = 9 8 1 8
- r 1
4 8 8
SLIDE 14
11 12 1 4
- x3
x3
- 3
12 = 12 8 4 8 12 12 11 12 See notes on previous slide.
SLIDE 15
Steps to success Convert the whole number into a improper fraction. Calculate Convert into a mixed number. Remember, sometimes this will be a whole number only. 4 5 1 3 x 12 5
- r 2 2
5
SLIDE 16
6 . 9 0 1 . 0 3
- 1
8
7 8 . 5 5.87 Don't forget to ensure that your columns are lined up
- correctly. You need to use a zero in the hundredths column
to be able to subtract.
SLIDE 17
1 3 6 x 2 1 1 3 6 2
1
7 2 2 8 5 6 2856 Remember to use a zero to show that you are multiplying by a ten.
SLIDE 18
9 1 7 6 x 4 3 8
1
2 5
2
2 7 4
2 3
7 3 6 8 6 5 4
1
9 3
394,568
SLIDE 19
4 2 3 9
4
4
6
7
47
SLIDE 20
6 0 1 5 5 1
1
2 0
1