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<p>1. EARLY MATH 기초 수학</p><p>2. Addition and subtraction intro 덧셈 및 뺄셈의 소개</p><p> </p><p>Relate addition and subtraction 덧셈과 뺄셈의 관계</p><p>1-2-8 Relating addition and subtraction 덧셈과 뺄셈의 관계</p><p> </p><p><a href="https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-basics/cc-early-math-add-subtract-10/v/relating-addition-and-subtraction" target="_top" class="ke-link">https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-basics/cc-early-math-add-subtract-10/v/relating-addition-and-subtraction</a></p><p> </p><div class="figure-img" data-ke-type="image" data-ke-style="alignCenter" data-ke-mobilestyle="widthOrigin"><img src="https://t1.daumcdn.net/cafeattach/1STCQ/12df7e54a08af748057dd6e35fb0b34eee8bfb5e" class="txc-image" data-img-src="https://t1.daumcdn.net/cafeattach/1STCQ/12df7e54a08af748057dd6e35fb0b34eee8bfb5e" data-orgin-width="794" data-origin-height="6995"></div>
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1. Early Math
1-2-8 Relating addition and subtraction [K-6 조하늘]
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21.03.13 09:24
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