STANDARD FORM
Convert between ordinary numbers and a×10^n • CALCULATE shows working
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MODE
TO SF
Standard form uses 1 ≤ a < 10
PREVIEW
LIVE
Example button loads a worked case
NUMBER
TYPE
Use digits, decimal point, optional minus
ROUND (SF)
OFF
Optional: round the final a value
WORKING
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RESULT
READY
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PAGE 1/2
MODE
TO SF
Standard form uses 1 ≤ a < 10
PREVIEW
LIVE
Example button loads a worked case
NUMBER
TYPE
Use digits, decimal point, optional minus
ROUND (SF)
OFF
Optional: round the final a value
WORKING
—
—
—
—
—
RESULT
READY
—
PAGE 1/2
WHAT IS STANDARD FORM?
a × 10^n where 1 ≤ a < 10
n tells you how many places to move
n positive → number gets bigger
n negative → number gets smaller
TO STANDARD FORM
Move the decimal to make a
Count moves = n
Left moves → n positive
Right moves → n negative
FROM STANDARD FORM
Start with a
Move decimal using n
n=0 means no change
CALCULATE shows the steps
WORKED EXAMPLES
0.00056 = 5.6 × 10^-4
560000 = 5.6 × 10^5
3.2 × 10^3 = 3200
7.1 × 10^-2 = 0.071
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