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# Converting with numbers in Standard Form

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by

## Mr Mattock

on 17 January 2016

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#### Transcript of Converting with numbers in Standard Form

Converting with numbers in Standard Form
Starter
Converting into standard form
45 x 10

0.74 x 10

2 x 3 x 5
Decimal and Standard Form
45000

2.7 x 10

0.0032

4.52 x 10
L.O. - To convert between decimal form
and standard index form (Grade 5+)

15 >> x2 , -8 , ÷ 2 , x5 , +9 , ÷ 8 , square , -6 , ÷ 2 ........

19 >> -7 , ÷ 3 , x7 , double , -6 , ÷ 5 , x3 , + 6 , x7 ………….

160 >> ÷ 4 , -1 , ÷ 13 , +9 , x2 , x3 , x2 , -1 , ÷ 11 ………….

60 >> halve , +2 , ÷ 8 , x6 , +1 , double , -10 , ÷ 8 , x9 ............

130 >> ÷ 10 , x4 , +2 , ÷ 9 , -2 , x3 , x9 , +8 , ÷ 4 ………….
Starter

15 >> x2 , -8 , ÷ 2 , x5 , +9 , ÷ 8 , square , -6 , ÷ 2 ..
29
..

19 >> -7 , ÷ 3 , x7 , double , -6 , ÷ 5 , x3 , ÷ 6 , x7 …
35
.

160 >> ÷ 4 , -1 , ÷ 13 , +9 , x2 , x3 , x2 , -1 , ÷ 11 …
13
.

60 >> halve , +2 , ÷ 8 , x6 , +1 , double , -10 , ÷ 8 , x9 ...
45
...

130 >> ÷ 10 , x4 , +2 , ÷ 9 , -2 , x3 , x9 , +8 , ÷ 4 …
29
.
3
-2
=
=
=
=
4
-2
3
2
Decimal and Standard Form
45000

2.7 x 10

0.0032

4.52 x 10
3
-2
=
=
=
=
4.5 x 10
2700
3.2 x 10
0.0452
Converting into standard form
45 x 10

0.074 x 10

2 x 3 x 5
4
-2
3
2
= 4.5 x 10 x 10 = 4.5 x 10
= 7.4 x 10 x 10 = 7.4 x 10
1
4
5
-2
-2
-4
= 2 x 3 x 2 x 5 x 2 x 5 = 6 x 10 x 10

= 6 x 10
2
Main
Complete the worksheet
Main
4.5 x 10
6.7 x 10
7.2 x 10
7.809 x 10

830
6100
0.093
0.61
3540000
904000
0.000259
0.00904

7.85 x 10
2.49 x 10
5.7 x 10
2 x 10
1
6
-4
-2
3
2
-3
-10
Main
8 x 10
1.278 x 10
5.67 x 10
5.6 x 10
6 x 10
3 x 10
5 x 10
8 x 10
7.4 x 10
4 x 10
7 x 10
8 x 10
3
-4
-1
-2
7
2
3
10
0
-3
-3
-7
3 x 10 7 x 10
5 x 10 15 x 10 = 1.5 x 10
2
3
3
2
3
Dice of Ultimate Power

1) Give a key word for the lesson.
2) Summarise one key point for the
lesson.
3) Explain one thing you have learned this
lesson.
4) State one thing you still don't understand following this lesson.
5) Suggest one thing you would like to find out
based on this lesson.
6) Free choice from 1 to 5, or another you make
up.
Key
Examples

Activity