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Standard Form 7

A self marking exercise on scientific notation also known as standard form.

Level 1 Level 2 Level 3 Level 4 Level 5 Level 6 Level 7 Level 8 Level 9 Description Help

Evaluate these expressions giving your answers in standard form to two decimal places.

4 x 102 + 4.08 x 102

= x10 Correct Wrong

1.2 x 104 + 5.95 x 104

= x10 Correct Wrong

5.86 x 102 + 9.38 x 100

= x10 Correct Wrong

5.21 x 105 − 5.65 x 101

= x10 Correct Wrong

5.92 x 104 − 6.37 x 101

= x10 Correct Wrong

5.75 x 105 − 7.53 x 103

= x10 Correct Wrong

5.18 x 103 × 1.36 x 101

= x10 Correct Wrong

2.13 x 103 × 1.2 x 105

= x10 Correct Wrong

6.48 x 103 × 3.8 x 101

= x10 Correct Wrong

3.57 x 102 ÷ (7.3 x 104)

= x10 Correct Wrong

8.8 x 105 ÷ (4.66 x 105)

= x10 Correct Wrong

8.85 x 104 ÷ (6.04 x 104)

= x10 Correct Wrong


This is Standard Form level 7. You can also try:
Level 1 Level 2 Level 3 Level 4 Level 5 Level 6 Level 8 Level 9


Try your best to answer the questions above. Type your answers into the boxes provided leaving no spaces. As you work through the exercise regularly click the "check" button. If you have any wrong answers, do your best to do corrections but if there is anything you don't understand, please ask your teacher for help.

When you have got all of the questions correct you may want to print out this page and paste it into your exercise book. If you keep your work in an ePortfolio you could take a screen shot of your answers and paste that into your Maths file.

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Description of Levels



Level 1 - Converting from standard form. Positive indices.

Level 2 - Converting from standard form. Negative indices.

Level 3 - Converting from standard form. Mixed including zero as the index.

Level 4 - Converting to standard form. The inverse of level 1.

Level 5 - Converting to standard form. The inverse of level 2.

Level 6 - Converting to standard form. The inverse of level 3.

Level 7 - Mixed calculations.

Level 8 - Mixed calculations without a calculator.

Level 9 - Multiple choice exercise.

Finally there is a drag-and-drop standard form ordering activity.


To convert a number to standard form means to write it in the form a x 10b where a is a number greater than or equal to one and less than ten and b is an integer.


= 3.48 x 10000

= 3.48 x 10 x 10 x 10 x 10

= 3.48 x 104



= 3.48 ÷ 100

= 3.48 x 1100

= 3.48 x 10-2


Finally note that any number raised to the power zero is 1 so:


= 3.48 x 1

= 3.48 x 100

Don't wait until you have finished the exercise before you click on the 'Check' button. Click it often as you work through the questions to see if you are answering them correctly.