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One Less

Play a fun addition game in the car or on the bus. Give your child a number less than 10, and ask her, "What is one less?"

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Extending this activity

  • -Combine 'one more' and 'one less' in a new game. For example, “ I am thinking of a number, it is one more than eight but one less than ten. What is my number?” Allow the child to come up his or her own clues and you guess the number.

    -Read “Rooster’s Off to See the World” by Eric Carle. The rooster, on a mission to see the world, is joined by one animal at a time on his walk. However when it gets dark, the animals leave one at a time. Have the child make predictions of how many animals will be on each page based on the pattern of adding one and taking one away.

Adjust for an older child

To make the game more challenging, use different words to give the clues. For example, “Six is one less than this number.”

Adjust for a younger child

While playing the game, go in reverse order starting with ten. Ex: One less than 10 is… 9; one less than 9 is… 8; one less than 8 is… 7, etc…

What is being taught through this activity

  • Foundational Literacy/Math Skills: Number and Operations

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