Question

Write the rules for determining significant figures.
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Answer 1

$\huge⟹{\underline{\mathtt{\red{A}\pink{N}\green{S}\blue{W}\purple{E}\orange{R}}}}$

ᴛᴏ ᴅᴇᴛᴇʀᴍɪɴᴇ ᴛʜᴇ ɴᴜᴍʙᴇʀ ᴏғ sɪɢɴɪғɪᴄᴀɴᴛ ғɪɢᴜʀᴇs ɪɴ ᴀ ɴᴜᴍʙᴇʀ ᴜsᴇ ᴛʜᴇ ғᴏʟʟᴏᴡɪɴɢ 3 ʀᴜʟᴇs:

▪ɴᴏɴ-ᴢᴇʀᴏ ᴅɪɢɪᴛs ᴀʀᴇ ᴀʟᴡᴀʏs sɪɢɴɪғɪᴄᴀɴᴛ.

▪ᴀɴʏ ᴢᴇʀᴏs ʙᴇᴛᴡᴇᴇɴ ᴛᴡᴏ sɪɢɴɪғɪᴄᴀɴᴛ ᴅɪɢɪᴛs ᴀʀᴇ sɪɢɴɪғɪᴄᴀɴᴛ.

▪ᴀ ғɪɴᴀʟ ᴢᴇʀᴏ ᴏʀ ᴛʀᴀɪʟɪɴɢ ᴢᴇʀᴏs ɪɴ ᴛʜᴇ ᴅᴇᴄɪᴍᴀʟ ᴘᴏʀᴛɪᴏɴ ᴏɴʟʏ ᴀʀᴇ sɪɢɴɪғɪᴄᴀɴᴛ.

$\huge❥{\underline{\mathtt{\red{T}\pink{H}\green{A}\blue{N}\purple{K}\orange{S}}}}$