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Explain how estimation helps you to place the decimal point when multiplying 3.9 x 5.3 ?
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4 votes
Explain how estimation helps you to place the decimal point when multiplying 3.9 x 5.3 ?

User Per Jakobsen
by
7.8k points

2 Answers

2 votes
Well the answer to that is 20.67.
Also, you can simply find this out by placing the decimal as you solve the problem, meaning as when you solve like this
3.9
x5.3
--------
.
Drag the decimal down.
User Karinna
by
8.9k points
1 vote
if you round 3.9 to 4 and 5.3 to 5 you can easily multiply those numbers together and get 15.
User Bojan Bozovic
by
7.8k points
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