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Essential pre-school population mental arithmetic: addition and subtraction within 50(Chinese Edition) - Softcover
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Paperback. Pub Date :2013-12-01 100 Chinese Central China Normal University Press enhance math skills to enhance quick thinking thematic exercises effective system of training young convergence essential know addition and subtraction within Digital 5010 do not carry adder 20 within 20 within not abdicate carry adder subtraction 20 within 20 within abdication subtraction within 20 subtraction does not carry adder 30 less than 20 less than not abdicate subtraction carry adder 30 or less left bit 30 or less Subtraction 30 addition and subtraction within not carry adder 40 less than 40 less than not abdicate subtraction carry adder 40 or less abdicated 40 within the subtraction within 40 addition and subtraction does not carry adder 50 or less 50 or less do not abdicate within subtraction 50 Carry 50 abdicate subtraction within 50 Addition a...
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Essential pre-school population mental arithmetic: addition and subtraction within 50(Chinese Edition)
Published by
Central China Normal University Press, 2013
ISBN 10: 7562264341
ISBN 13: 9787562264347
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paperback
Seller: liu xing, Nanjing, JS, China
Seller rating 5 out of 5 stars
paperback. Condition: New. Paperback. Pub Date :2013-12-01 Pages: 100 Language: Chinese Publisher: Central China Normal University Press enhance math skills to enhance quick thinking thematic exercises effective system of training young convergence essential Contents: know addition and subtraction within Digital 5010 do not carry adder 20 within 20 within not abdicate carry adder subtraction 20 within 20 within abdication subtraction within 20 subtraction does not carry adder 30 less than 20 less than not abdicate subt. Seller Inventory # BX008736
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