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Explain how an estimate helps you to place the decimal point when multiplying 3.9 times 5.3
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Explain how an estimate helps you to place the decimal point when multiplying 3.9 times 5.3
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Aug 26, 2017
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Explain how an estimate helps you to place the decimal point when multiplying 3.9 times 5.3
Mathematics
middle-school
EzeTeja
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Estimations are like rounding
Steps to solve
1. turn 3.9 to 4
2. Turn 5.3 to 5
3. Multiply 4*5
4. you're answer should be 20
5. Now put the decimal to the left of 20
Step-by-step explanation:
Estimating helps you because it makes it easier for you to multiply after you round.
LukeP
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Aug 29, 2017
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LukeP
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3.9 * 5.3 ≈ 4 * 5
≈20
Well after doing your multiplication, you can place your decimal point by knowing that from estimation the answer is around 20.
So you can place your decimal point after the first two digits from the left.
JNK
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Sep 1, 2017
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JNK
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