Using Common Core State Standards for Mathematics (CCSS-M), learn to mentally add 10 or 100 to a given number 100-900, and mentally substract 10 or 100 from a given number 100-900.
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Using Common Core State Standards for Mathematics (CCSS-M), learn to mentally add 10 or 100 to a given number 100-900, and mentally substract 10 or 100 from a given number 100-900.
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Add this copy of High-Speed Trains: Use Place Value Understanding and to cart. £44.23, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Santa Clarita, CA, UNITED STATES, published 2014 by Powerkids Pr.
