User login

Ten, Twenty, Thirty

Source Institutions

    Lawrence Hall of Science

Add to listGo to activity
Ten, Twenty, Thirty

This game for one to four players uses a deck of cards to develop mental addition skills. Cards are turned over in a row, and when the sum of cards on the ends of the row is 10, 20, or 30, a player can take those cards (aces count 1, face cards count 10). The winner is the player with the most cards at the end. For the solitaire version, the player must end with more cards than are left on the table. Variations include making jokers wild, or aces worth 11.

Quick Guide

Preparation Time:
Under 5 minutes

Learning Time:
10 to 30 minutes

Estimated Materials Cost:
$1 - $5 per group of students

Age Range:
Ages 11 - 14

Resource Types:
Activity, Game


Materials List (per group of students)

  • deck of cards excluding the jokers


  • Mathematics
    • Number and Operations
      • Number Systems
      • Operations

Informal Categories

  • Games


To use this activity, learners need to:

  • see
  • touch


This resource is part of:

Access Rights:

  • Free access


Source Collection:

  • Science After School Consumer's Guide


  • All Rights Reserved, The Regents of the University of California, ©1998


User Lists

This resource is part of these lists: