Here, 4 hundredths is less than 5 hundredths, so it is rounded down. When it is rounded down, 7.54 becomes 7.5. Now, let's try rounding the number 7.56 to the nearest tenth.

In this KS2 Maths article you’ll learn how to round decimals to one decimal place. ... Remember, one hundredth is 0.01 and ten hundredths make one tenth which is 0.1.