Home

Maths

Number and place value

Rounding to the nearest 10, 100 and 1000

Rounding to the nearest 10, 100 and 1000

Videos

Summary

Exercises

Select Lesson

Statistics

Bar charts

Pictograms

Tables

Discrete and continuous data

Geometry - position and direction

Coordinates in the first quadrant

Describing movement on a grid

Coordinate polygons

Geometry - properties of shapes

2D shapes: Types and properties

3D shapes: Types and properties

Symmetry

Comparing and classifying shapes

Right angles, acute and obtuse angles

Lines of symmetry in 2D shapes

Measurement

Adding and subtracting money

Money: Change and currency

Converting time between analogue and digital clocks

Converting metric units

Perimeter of rectilinear shapes

Area of rectilinear shapes

Fractions

Counting in tenths

Counting in hundredths

Add and subtract fractions: Same denominator

Finding fractions of amounts

Equivalent fractions

Equivalent fractions, decimals and percentages

Decimal equivalents: Tenths and hundredths

Converting decimals to fractions

Dividing whole numbers by 10 and 100

Multiplication and division

Counting in multiples of 6, 7, 9, 25 and 1000

Multiplying 2 and 3-digit numbers by a 1-digit number

Times tables up to 12 x 12

Multiplying and dividing by 1 and multiplying by 0

Multiplying three numbers together

Multiplication scaling problems

Multiplication using distributive law

Correspondence problems

Mental maths strategies

Addition and subtraction

Adding numbers using mental maths

Using column addition to add numbers

Subtracting numbers using mental maths

Using column subtraction to subtract numbers

Two-step problems with addition and subtraction

Number and place value

Numbers higher than 1000

Place value: Four-digit numbers

Representing numbers in different ways

Rounding to the nearest 10, 100 and 1000

Counting backwards through zero: Negative numbers

Roman numerals to 100

Explainer Video

Tutor: Alice

Summary

Rounding to the nearest 10, 100 and 1000

​​In a nutshell

Rounding numbers makes them much easier to work with. It also allows you to estimate answers to long, tricky calculations.


Rounding to the nearest 10

Definition

Rounding to the nearest ten means to round a number up or down to the nearest multiple of ten.


PROCEDURE

​​1.

Look at the digit in the ones column.

2. 

  • If the value is 0,1,2,30,1,2,30,1,2,3 or 444: round down to the nearest multiple of ten.​
  • If the value is 5,6,7,85,6,7,85,6,7,8 or 999​: round up to the nearest multiple of ten.


Example 1

Round 727272 to the nearest ten.


Look at the ones.

The digit in the ones column is 222.


Round down to the nearest multiple of ten.

72→70‾72\rightarrow\underline{70}72→70​​

​

Tip: Remember, a multiple of ten has a zero in the ones column. If you already have a zero in the ones, your number is already rounded!


Rounding to the nearest 100

​​Definition

Rounding to the nearest hundred means to round a number up or down to the nearest multiple of 100100100.


PROCEDURE

​​1.

Look at the digit in the tens column.

2.

  • If the value is 1,2,31,2,31,2,3 or 444: round down to the nearest multiple of 100100100.​​
  • If the value is 5,6,7,85,6,7,85,6,7,8 or 999​: round up to the nearest multiple of 100100100.


Example 2

Round 673673673 to the nearest hundred.


Look at the tens.

The digit in the tens column is 777.


Round up to the nearest multiple of 100100100​.

673→700‾673\rightarrow\underline{700}673→700​


Rounding to the nearest 1000

​​Definition

Rounding to the nearest thousand means to round a number up or down to the nearest multiple of 100010001000.


PROCEDURE

1.

Look at the digit in the hundreds column.

2.

  • If the value is 1,2,31,2,31,2,3 or 444: round down to the nearest multiple of 100010001000.​​
  • If the value is 5,6,7,85,6,7,85,6,7,8 or 999​: round up to the nearest multiple of 100010001000.


Example 3

Round 162916291629 to the nearest thousand.


Look at the hundreds.

The digit in the hundreds column is 666.


Round up to the nearest multiple of 100010001000​.

1629→2000‾1629\rightarrow\underline{2000}1629→2000​

​​


Read more

Learn with Basics

Learn the basics with theory units and practise what you learned with exercise sets!
Length:
Place value: Four-digit numbers

Unit 1

Place value: Four-digit numbers

Numbers to 1000

Unit 2

Numbers to 1000

Jump Ahead

Score 80% to jump directly to the final unit.

Optional

This is the current lesson and goal (target) of the path

Rounding to the nearest 10, 100 and 1000

Unit 3

Rounding to the nearest 10, 100 and 1000

Final Test

Test reviewing all units to claim a reward planet.

Create an account to complete the exercises

FAQs - Frequently Asked Questions

How do I round to the nearest 1000?

To round to the nearest 1000: 1. Look at the digit in the hundreds column. 2. - If the value is 1, 2, 3 or 4: round down to the nearest multiple of 1000.​ - If the value is 5, 6, 7, 8 or 9​: round up to the nearest multiple of 1000.

How do I round to the nearest 100?

To round to the nearest 100: 1. Look at the digit in the tens column. 2. - If the value is 1, 2, 3 or 4: round down to the nearest multiple of one hundred.​ - If the value is 5, 6, 7, 8 or 9​: round up to the nearest multiple of one hundred.

How do I round to the nearest 10?

To round to the nearest 10: 1. Look at the digit in the ones column. 2. - If the value is 1, 2, 3 or 4: round down to the nearest multiple of ten.​ - If the value is 5, 6, 7, 8 or 9​: round up to the nearest multiple of ten.

©2020 - 2024 evulpo AG

Beta