Step-by-step explanation:

Answer:
Estimate one digit past the smallest precisely known digit or marking
Step-by-step explanation:
To determine the last digit in any measured number : Estimate one digit past the smallest precisely known digit or marking
This is employed mostly when trying to round off a measured or calculated number to a precise number of digits and in other to determine the last digit in the given number we will have to estimate one digit past the smallest precisely known digit
310.64 - 129.43 equals 181.21
Your answer is 181.21
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Answer:
8
Step-by-step explanation:
4/6 out of 12 is 8,so There are 8 black birds.
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