# Addition and Subtraction Activities (10, 50, 100, and 0) Conceptual Math

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Common Core Standards
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663 KB|61 pages
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Common Core Aligned!!!

Rethink Mathematics!!! Allow students to build number sense through play!

Constructivist Theory states that knowledge is not passively absorbed, but must be created by the individual.

Closest To activity comes in 10, 50, 100 and 0 format! The Closest to 0 activity is a great subtraction addition that can be used with single or double digits. Over time, students will recognize different patterns in number creation and addition. The more you play, the stronger students will become in their addition and subtraction skills!

In the Closest To activity, students build their own solutions to the problems presented to them. They will explore many possible solutions in every round.

This game can be used for literacy centers, whole group, and small group instruction. Students will be absorbed this thought provoking game.

To Use: Break students into groups of 3 or 4 and give each student a score card. Give each group a stack of shuffled number cards, (40-50), face down. Have groups draw 4-6 cards per group. Each group will choose 2-4 numbers from the cards in front of them and combine the two numbers to make a two digit number (for Count To 50 and Count To 100), (a #2 card and a #3 card can be combined to make a 23 or a 32 and wild cards can represent any single digit number the student chooses). The goal is to get closest to the given number (over or under). They will fill in their answer. In the score box, students will write how far from the given number their answer was. At the end of the round, students will add up their final score. The student or group with the lowest score wins.

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61 pages
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