Round two-digit or three-digit numbers to the nearest 10 or 100 and give estimates for their sums and differences

Related Worksheets

KS2 Maths Invaders
** New tablet-friendly version added 14th February 2018. Please let me know if you have any problems - support@mathsframe.co.uk

Shoot the spaceship with the correct answer and dodge the incoming fire. A fun game to practise a wide range of key mathematical skills.

There are over a hundred carefully differentiated levels linked to objectives from the new maths curriculum. The game can be used to teach: Multiplication, Addition, Reading Numbers, Subtraction, Fractions of Numbers, Roman Numerals, Rounding Numbers, Division, Converting Fractions to Decimals, Converting Fractions to Percentages, Telling the Time in Words, Recognising Multiples, Factors, Prime, Square and Cube Numbers, and Simplifying Fractions. A full list of levels is below. This game is also available as an iOS and Android app.

Game availability:

Online in HTML5 format
KS2 Maths Invaders ?
Snake - KS2 Maths Game
Use the arrow keys on a computer or swipe on a tablet to guide the snake to the correct answers.

There are more than 100 different levels to play. See below for a full list of levels.

Game availability:

Online in HTML5 format
Snake - KS2 Maths Game ?
Rounding Answers
Use the calculator to answer a question and then round your answer to the nearest 10, 100, whole number or to 1, 2 or 3 decimal places. The correct answer is then shown on a number line. Play against the clock to see how many points you can score.

Game availability:

Online in HTML5 format
Rounding Answers ?
Rounding - Crystal Crash
Throw your pickaxe at the correct crystal. This game has the following levels (taken from the new maths curricululum):

1. Round numbers up to 100 to the nearest 10 (Y2)

2. Round numbers up to 1000 to the nearest 10 (Y3)

3. Round numbers up to 10,000 to the nearest 10, 100 or 1000 (Y4)

4. Round decimals with one decimal place to the nearest whole number (Y4)

5. Round decimals with two decimal places to the nearest whole number and to one decimal place (Y5)

6.Round decimals with up to three decimal places to the nearest whole, one decimal place or two decimal places (Y6)

This game, together with all the other crystal crash games, is available as a single iPad or Android app.

Game availability:

Online in HTML5 format
Rounding - Crystal Crash ?