Question

Round off 434 to the nearest ten.

• A. 430
• B. 440
• C. 435
• D. 445

Answer 1

The correct option is A 430

We can see from the above number line that the multiple of 10 which comes just after 434 is 440 and the multiple of 10 that comes just before 434 is 430.

To round off a number to the nearest 10, we check the units digit of the number.
If the digit is 5 or above, it is rounded up to the higher multiple of 10. If it is less than 5, the number is rounded down to the lower multiple of 10.

In the case of 434, since 4 < 5, 434 will be rounded down to 430.

We can also see on the number line that 434 is closer to 430 than 440.