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antiseptic1488 [7]
3 years ago
15

Estimate the answer 102.3 × 4.7​

Mathematics
2 answers:
ddd [48]3 years ago
8 0
The estimated answer would be 480.81
Pavel [41]3 years ago
5 0

Answer:

500

Step-by-step explanation:

First of, multiply all of the number by 10 to remove the decimal place ( this will make it less confusing)

So 102.3 x 10= 1023

4.7 x 10 = 47

You will have to round each of the numbers to 1 significant figure (sf) :

1023 round to 1 sf will be 1000

47 rounded to 1 sf will be 50

Then multiply these numbers:

1000 x 50 = 50000

Finally divide by 100 to get back the decimal places

(You divide by 100 because you multiplied by 10 twice, 10 x 10= 100)

You get 500

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