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A Math Game for First, Second, and Third Graders

When working with first graders, second graders, and sometimes even third graders, I have found that when asked, “How much is your number + 10 (e.g., 23 + 10)”, they struggle to know the answer and end up counting on their fingers. Counting on fingers is a good beginning strategy, but as children gain in number sense, fingers should no longer be necessary. The same is true if I ask, “How much is your number -10?”

A major learning goal for students in the primary grades is to develop an understanding of properties of, and relationships among, numbers. Building on students’ intuitive understandings of patterns and number relationships, teachers can further the development of this one aspect of number concepts and logical reasoning by using a math game Tens and Ones.

Tens and Ones

What you need:
2 players
0-99 chart for each player (find one and download it from the internet or have your child make one using a 10×10 grid.
1 counter (button, paper clip, rock, etc.) for each player
1 regular die with instructions for rolling (following)

Roll 1 or 2 – +10
Roll 3 or 4 – +1
Roll a 5 – -1
Roll a 6 – -10

Each player places a counter on the zero on his/her own 1-99 chart. Players take turns rolling the die.

Player #1 rolls the die and moves his/her counter according to the roll on his/her 0-99 chart. Player #1 checks to make sure that player #2 agrees and then hands the die to player #2.

Player #2 follows the same steps as player #1 using his/her own 0-99 chart.

It may be visually helpful to have the child roll the die, leave the counter where it is and then count on using his finger. When he/she reaches +10, the player will then be able to see that he/she is exactly one row down from where he/she started. Then the counter can be moved to the new spot.

The winner is the first player to move his/her counter to 99. To win a player must land on 99 exactly. For example, if a player lands on 90 and rolls a +10 on the next turn, the player must pass, as there are only nine boxes from 90 to 99. Players may not move their counters past 99 and off the chart.

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