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Home / Teaching Resources / Grade 1 / Standards for Mathematical Practice / Number & Operations in Base Ten / Understand place value / CCSS.MATH.CONTENT.1.NBT.B.2 / CCSS.MATH.CONTENT.1.NBT.B.2.B
The numbers from 11 to 19 are composed of a ten and one, two, three, four, five, six, seven, eight, or nine ones.
(View this topic on www.corestandards.org )