A 60-minute lesson in which students will understand how 2-digit numbers can be decomposed.
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Decomposing and Expanding 2-Digit Numbers
60 mins
|
Suitable for grades:
K - 1
Curriculum
CCSS.MATH.CONTENT.1.NBT.B.2
Understand that the two digits of a two-digit number represent amounts of tens and ones. Understand the following as special cases:
Math K.2(B)
Read, write, and represent whole numbers from 0 to at least 20 with and without objects or pictures;
Math K.2(I)
Compose and decompose numbers up to 10 with objects and pictures.
Math 1.2(B)
Use concrete and pictorial models to compose and decompose numbers up to 120 in more than one way as so many hundreds, so many tens, and so many ones;
Math 1.2(C)
Use objects, pictures, and expanded and standard forms to represent numbers up to 120;
Author
Teach Starter Publishing
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