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Cerrena [4.2K]
3 years ago
7

Find each product mentally. 7 times 3.8

Mathematics
1 answer:
lutik1710 [3]3 years ago
5 0
To do it mentally means to do it in your head

first do 7 * 3 = 21 in your head

than do 7 * 0.8 = 5.6 ( this might be hard to do in your head but you know 7*8 = 56 so add a decimal since it is 0.8 not 8 )

Add : 21 + 5.6 = 26.6

Final Answer : 26.6


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Answer:

Step-by-step explanation:

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Step-by-step explanation:

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You buy a watch for $60. There is a 6% sales tax. What is your total cost for the<br> watch?
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