Rounding Worked Solutions — GCSE Maths

Identify the first decimal place (tenths)

We are rounding $3.47$ to the $1$ decimal place, so we focus on the first decimal place (tenths).

Look at the next digit to decide

The next digit is $7$, which is $5$ or more, so we round up.

Write $3.47$ rounded to the $1$ decimal place

So $3.47$ rounded to the $1$ decimal place is $3.5$.

Identify the second decimal place (hundredths)

We are rounding $0.826$ to the $2$ decimal places, so we focus on the second decimal place (hundredths).

Look at the next digit to decide

The next digit is $6$, which is $5$ or more, so we round up.

Write $0.826$ rounded to the $2$ decimal places

So $0.826$ rounded to the $2$ decimal places is $0.83$.

Identify the second decimal place (hundredths)

We are rounding $15.372$ to the $2$ decimal places, so we focus on the second decimal place (hundredths).

Look at the next digit to decide

The next digit is $2$, which is less than $5$, so we round down.

Write $15.372$ rounded to the $2$ decimal places

So $15.372$ rounded to the $2$ decimal places is $15.37$.

Identify the first decimal place (tenths)

We are rounding $7.649$ to the $1$ decimal place, so we focus on the first decimal place (tenths).

Look at the next digit to decide

The next digit is $4$, which is less than $5$, so we round down.

Write $7.649$ rounded to the $1$ decimal place

So $7.649$ rounded to the $1$ decimal place is $7.6$.

Identify the third decimal place (thousandths)

We are rounding $2.9518$ to the $3$ decimal places, so we focus on the third decimal place (thousandths).

Look at the next digit to decide

The next digit is $8$, which is $5$ or more, so we round up.

Write $2.9518$ rounded to the $3$ decimal places

So $2.9518$ rounded to the $3$ decimal places is $2.952$.