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CLIP 10232

# Adding three numbers - problem solving

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Key Info
• Adding three numbers - problem solving
• Duration: 01:33
• In this animation an ant needs to work out if there is enough space to house 29 ants in 3 houses. A friend suggests she counts how many ants can go into each house to see if there are the right number of spaces. The spaces are counted - there are 13, 7 and 9. On a note pad, the ant adds 13 and 7 to make 20, then adds the 9 to make 29 - so there are enough spaces.
• Subject:

Topic:

## Problem Solving: Numbers and Calculations

Ideas for use in class
• To show how to solve problems involving the addition of three numbers. To show how number bonds can be used to do mental calculations with jottings.
Background details
• Clip language : English
• Aspect ratio : 16x9