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Chinese translation: 全句

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21:13 Feb 15, 2010

English to Chinese translations [PRO]
Social Sciences - Mathematics & Statistics

English term or phrase: Whole sentence

He is able to break numbers apart by place value (45+48=____; 40+40=80; 5+8=13; 80+13=93) or jump to or by a landmark number on an open number line.

I am not sure how to translate this sentence. Any suggestion is much appreciated.

Guei Lin KudoZ activity Questions: 35 (none open) (4 closed without grading) Answers: 166 United States
Local time: 07:37

Chinese translation:全句

Explanation:
他能用數位值分拆數字(45+48=____; 40+40=80; 5+8=13; 80+13=93)或跳數到下一個數目或在開放型算術橫式找一個地標數字。

Chets Creek Elementary Math: Using Landmark Numbers on an Open ...Jan 24, 2009 ... In using landmark numbers on the open number line, we want to find a landmark number that is easy to count on from. ...
chetsmath.blogspot.com/.../using-landmark-numbers-on-open-number.html - Cached - Similar -[PDF] Addition on the Open Number LineFile Format: PDF/Adobe Acrobat - Quick View
A minilesson introduces the open number line model and focuses on decomposing an addend to get to a landmark number. The game of Fly ...
www.contextsforlearning.com/samples/K3SampSessionFINAL.pdf - Similar -[PDF] Using a Number Line to Teach FractionsFile Format: PDF/Adobe Acrobat - Quick View
With representations on the open number line, students move beyond counting by ones, to taking leaps, decomposing numbers, and using landmark numbers. ...
dww.ed.gov/launcher.cfm?media/MathScience/MPR/AF/See/... - Similar -