Year 9 / Grade 9 ā¢ Daily Maths Drill
Indices and Scientific Notation
Use index laws and scientific notation for very large and small numbers.
8 questions ā¢ 240-question rotating bank ā¢ 30 different sets before a full cycle repeats
8Questions
240Question bank
0Best score
š” Quick Review
Indices and Scientific Notation
Scientific notation writes a number as a coefficient from 1 to less than 10 multiplied by a power of ten.
Key ideas
- index laws
- negative powers
- scientific notation
- orders of magnitude
- calculator interpretation
Worked example: 4,500,000 = 4.5Ć10ā¶.
Common trap: The coefficient in scientific notation should have one non-zero digit before the decimal point.
Key words
scientific notation ā aĆ10^n with 1ā¤|a|<10
exponent ā power
order of magnitude ā scale based on powers of ten
coefficient ā number multiplying power of ten
index law ā rule for powers
How to use this drill: review the short notes when learning, then close them on later attempts and practise from memory. The rotating bank delays a full set repeat for 30 attempts on the same browser.