Multiplying Decimals Help
(click link above for lesson)
(click link above for lesson)
3.9 x 4.7
estimate first: 4 x 5 = 20
second, use standard algorithm to solve
3.9 x 4.7 = 1833
third, place decimal between the 8 and the 3...
because your answer is about 20
AND
there are two digits in decimal place values, so your answer must have two decimal place values as well!
there are two digits in decimal place values, so your answer must have two decimal place values as well!
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