Addition Indoor Under $20 Activities

See all 23 addition indoor under $20 activities. MontiPlanet.com offers a complete overview with descriptions, benefits and age recommendations. Find all addition indoor under $20 activities.

Products

Age: 4 Years

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$16.99
Age: 4 Years

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$16.99
Age: 4 Years

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$19.99
Age: 5-12 Years

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$13.49
Age: 8 Years

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$18.99
Age: 4 Years
$15.00
Addition activities help children build counting, early math understanding, and confidence.
Age: 4 Years
$4.99
Age: 6 Years
$6.50
Age: 3 Years
$2.99
Age: 4 Years
$13.00
Age: 4 Years
$3.29
Age: 4 Years
$3.79
Children ready to count small groups and recognize numbers can begin addition activities, usually around 3+, with simpler materials building first steps.
Age: 4 Years
$15.00
Age: 4 Years
$3.95
Age: 4 Years
$9.80
Age: 3-6 Years
$9.40
Age: 4 Years
$9.95
Age: 4 Years
$15.99
maria montessori image
"When numerical rods are given to children, we see that even the smallest take a lively interest in counting." Maria Montessori, The Discovery of the Child
Age: 3 Years
$3.29
Age: 4 Years
$4.49
Age: 4 Years
$4.49
Age: 4 Years
$4.49
Age: 4-8 Years
$3.99

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For which age are you interested?

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10

1 Reviews

More reviews

Ellen

26-05-2026

Really happy with the mud kitchen. The quality is great, and it looks beautiful in the garden. Our kids spend hours playing with water, sand, mud, and pretending to cook. It’s a fun way to keep them active and creative outdoors. The setup was easy, and the materials feel sturdy and durable. Definitely a great addition for outdoor play. Highly recommended!