# Writing Standard Form Numbers as Ordinary Numbers

In this worksheet, students write standard form numbers as ordinary numbers.

Key stage:  KS 3

Curriculum topic:   Number

Curriculum subtopic:   Interpret/Compare Standard Form Numbers

Difficulty level:

### QUESTION 1 of 10

In this worksheet, you must change numbers written in standard form back to ordinary numbers.

Remember       10000 = 104
1000 = 103
100 = 102
10 = 101
1 = 100

 1 10
= 10-1  or
 1 10

 1 100
= 10-2  or
 1 102

 1 1000
= 10-3  or
 1 103

Examples

5.1 × 10as an ordinary number is

5.1 × 10000 = 51000

3.214 × 10 -4 as an ordinary number is

3.214 ×
 1 1000
= 3.214 ÷ 10000 = 0.0003214

Write this standard form number as an ordinary number:

 9.54 × 10-2 =

Write this standard form number as an ordinary number:

 5.37 × 10-3 =

Write this standard form number as an ordinary number:

 5.79 × 10-2 =

Write this standard form number as an ordinary number:

 5.31 × 103 =

Write this standard form number as an ordinary number:

 7.03 × 102 =

Write this standard form number as an ordinary number:

 5.63 × 10-4 =

Write this standard form number as an ordinary number:

 1 × 10-2 =

Write this standard form number as an ordinary number:

 3.18 × 102 =

Write this standard form number as an ordinary number:

 6.47 × 101 =

Write this standard form number as an ordinary number:

 6 × 106 =

• Question 1

Write this standard form number as an ordinary number:

 9.54 × 10-2 =
0.0954
• Question 2

Write this standard form number as an ordinary number:

 5.37 × 10-3 =

0.00537
• Question 3

Write this standard form number as an ordinary number:

 5.79 × 10-2 =

0.0579
• Question 4

Write this standard form number as an ordinary number:

 5.31 × 103 =

5310
• Question 5

Write this standard form number as an ordinary number:

 7.03 × 102 =

703
• Question 6

Write this standard form number as an ordinary number:

 5.63 × 10-4 =

0.000563
• Question 7

Write this standard form number as an ordinary number:

 1 × 10-2 =

0.01
• Question 8

Write this standard form number as an ordinary number:

 3.18 × 102 =

318
• Question 9

Write this standard form number as an ordinary number:

 6.47 × 101 =

64.7
• Question 10

Write this standard form number as an ordinary number:

 6 × 106 =

6000000
---- OR ----

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