Arithmetic paper 5 Once you have completed the arithmetic paper, - - PowerPoint PPT Presentation

Arithmetic paper 5

Once you have completed the arithmetic paper, use the slides to help you to understand where you have made your mistakes. Try to improve your score each week!

You will need to add 100 to the hundreds column. 400 + 100 = 500

560

Consider the number of tens when answering this

• question. 629 has 62 tens.

62 tens - 6 tens = 56 tens Remember to include the ones in your answer.

569

9 6 4 2

1

4

• r

20 x 4 = 80 80 + 16 = 96 4 x 4 = 16

24

10 12

Remember to only add the numerator. The denominator stays the same.

2 5

Remember to only subtract the numerator. The denominator stays the same. 1 7 8 4 2 7 7 3 + 7 5 5

1 1

4

4557

6 2 1 6 5 4 9

• 1

7 1 1 5 6 1 6 5

5667 56

4 x 3 = 12 12 x 9 = 108

108

4 2 7 x 6 2

4

6

1

2 5

2562

2 . 8 0 . 6 + 4 .

1

3

3.4

T O t h

th th

3 8 8 3

3.8

The digits move one place to the right when dividing by 10. A good way to remember is 10 has one zero so one place is moved.

48 8 = 6 6 x 3 = 18 ÷

18

8 2 9 3 4 4 1 5 5 + 9 8

1

7 8

87,089

Use your number bonds to 1000 to find the answer. 1000 - 900 = 100

39,100

8 6 9 3 2 5 3 6 8 3 7

• 1

1

8

1 2

8

1 8

4 2 3 8 832,488

12 x 12 = 144 This symbol means 'squared'. To find the answer, you must multiply 12 by itself.

144

9 x 6 = 54 90 x 6 = 540 900 x 6 = 5400

5440

We can use our known facts to help us to answer this question.

700

300 5 = 60 50 5 = 10 350 5 = 70 ÷ ÷ ÷ We can use our known facts to help us to answer this question. Remember to replace the zero to give a final answer. H T t h

th th

7 3 7 3 The digits move one place to the left when multiplying by 10. A good way to remember is 10 has one zero so one place is moved.

7.03

Steps to success Find the lowest common denominator. Convert both fractions. In this case 7 will remain the same. Remember, when converting, whatever has been done to the denominator, must be done to the numerator. Calculate 12 3 6 9 12 12 2 3 7 12 +

x 4 x 4

8 12 + 7 12 = 15 12

• r 112

3

10 9 1 2

• x 5

x 5

• 5

10 = 4 10 10 9 7 8 1 5 x 35 8

• r 4

3 8 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.

10 2 4 6 8 10

3 . 5 0 4 . 1 2 7 . 6 2 Don't forget to use a place holder

• zero. Always line up your columns

correctly.

7.62

2 0 9 x 3 4 6 3 8 2 7 6 7 1 0 6

7106

Don't forget to use a zero to show that we are multiplying by 30 and not 3.

7 6 2 8 x 7 2 6

1

5 2

1

1 5 6

5

9

1

3

4

5 3 6 1

1

2

1

9 5 4 549,216

6 7 2 8

6

8

3

4

84

7 3 4 5 5 1

3

4

2

6

1469

4

9