Deepest Ocean

Compare numbers using inequality signs

Take your submarine to the depths of the ocean and use inequalities to catch as many fish as possible!

Selection of related activities

Curriculum-aligned activities

  • Mangahigh math quiz

    Use < > and =

    Use the symbols <, > and = correctly.

  • Mangahigh math quiz

    Use negative numbers

    Use positive and negative numbers in context such as temperature and position them on a number line; state inequalities using the symbols < and > (e.g. -3 > -5, -1 < 1) Find the difference between a positive and a negative integer, or two negative integers, in context.

  • Mangahigh math quiz

    Inequalities on a number line

    Represent the solutions of an inequality in one variable on a number line.

  • Mangahigh math quiz


    Solve one sided linear inequalities in 1 variable and find max/min integer solution or a list of integer solutions from a set.

  • Mangahigh math quiz

    Putting whole numbers in order up to 100

    Decide which of two numbers from 1 to 100 is the larger. From a list of integers up to 100, arrange in ascending or descending order.

  • Mangahigh math quiz

    Recognize place value

    Read, write and order whole numbers, recognising that the position of a digit gives its value and understand the place value of each digit up to 1000.

How to teach Number using Mangahigh

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