Loading please wait

The smart way to improve grades

Comprehensive & curriculum aligned

Try an activity or get started for free

Know Your Numbers: Adding with Tens and Hundreds

In this worksheet, students improve their mental addition by adding two and three digit numbers that include tens and hundreds.

'Know Your Numbers: Adding with Tens and Hundreds' worksheet

Key stage:  KS 2

Curriculum topic:   Number: Addition and Subtraction

Curriculum subtopic:   Use Mental Addition/Subtraction to 1000

Difficulty level:  

Worksheet Overview

QUESTION 1 of 10

In this worksheet, you have to complete the sum given, by working out the answer to the addition.

 

Example 1

 

Add the numbers:

 

50 + 78

 

Answer

 

First we add the units 0 + 8 = 8

Then we add the tens, 50 + 70 = 120

 

Then we combine the two results to get  120 + 8 = 128

 

The answer is 128

 

 

Example 2

 

Add the numbers:

 

500 + 78

 

Answer

 

First we add the units 0 + 8 = 8

Then we add the tens, 00 + 70 = 70

Then we add the hundreds, 500 + 000 = 500

 

Then we combine the three results to get   500 + 70 + 8 = 578

 

The answer is 578

---- OR ----

Get started for free so you can track and measure your child's progress on this activity.

What is EdPlace?

We're your National Curriculum aligned online education content provider helping each child succeed in English, maths and science from year 1 to GCSE. With an EdPlace account you’ll be able to track and measure progress, helping each child achieve their best. We build confidence and attainment by personalising each child’s learning at a level that suits them.

Get started
laptop

Try an activity or get started for free

  • educational
  • bettfutures
  • cxa
  • pta
  • era2016
  • BDA award
  • Explore LearningTuition Partner
  • tacm