Question

Round off the following numbers to the nearest integer:
A). 288.29
B). 3998.37
C). 4856.795
D). 4999.96

Answer 1

Hint: See the last value of the number given if the last number is less than or equal to 4 then don’t change the value preceding it just cut the last number and if the value of the last digit exceeds 4 then add 1 to the digit preceding it do it till we get the number without any decimal place

Complete step-by-step solution:
A). We are given the number 288.29
The last digit is 9 therefore the number becomes 288.3 now the last digit is 3 which means that no change will take place to the value preceding it, which means that 288 is the correct answer.
B). We are given the number 3998.37
The last digit is 7, therefore, the number becomes 3998.4 which means that we will add 1 to the digit preceding it so now the number becomes 3999 which is indeed the correct answer.
C). We are given the number 4856.795
The last digit is 5 therefore the number becomes 4856.80 as the last digit was exceeding 4, now the last digit is 0 which means that the number becomes 4856.8, now the last digit is 8 which is greater than 4 which means we will have to add 1 to the preceding digit which will be 4857, which conclude us with our answer.
D). We are given the number 4999.96
The last digit is 6, therefore, the number becomes 5000.0, now we can see that we are left with only a 0 after decimal point which can just be erased as it plays no role and hence 5000 is the correct answer here.

Note: Do note that 3.00 is equal to 3 but 3.08 is not equal to 3 until we round it off, so 0 is the last digit after the point then only we can cancel it out but if we can find a digit after 0 then we can’t.