CCSS Math:
1.NBT.2
1.NBT.2 Understand that the two digits of a twodigit number represent amounts of tens and ones. Understand the following as special cases:
1.NBT.2.A
1.NBT.2.A 10 can be thought of as a bundle of ten ones — called a "ten."
1.NBT.2.B
1.NBT.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.
1.NBT.2.C
1.NBT.2.C The numbers 10, 20, 30, 40, 50, 60, 70, 80, 90 refer to one, two, three, four, five, six, seven, eight, or nine tens (and 0 ones).
This number and operations in base ten lesson covers how to rewrite numbers. The lesson includes researchbased strategies and strategic questions that prepare students for assessments. In this lesson, students are asked to read the number, represent it in dots if needed, and group the dots into groups of ten. Then, they rewrite the number and interpret it in words.
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 Grades:

1
 Subjects:

Math
Standard Alignments:
CCSS Math:
1.NBT.2
1.NBT.2 Understand that the two digits of a twodigit number represent amounts of tens and ones. Understand the following as special cases:
1.NBT.2.A
1.NBT.2.A 10 can be thought of as a bundle of ten ones — called a "ten."
1.NBT.2.B
1.NBT.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.
1.NBT.2.C
1.NBT.2.C The numbers 10, 20, 30, 40, 50, 60, 70, 80, 90 refer to one, two, three, four, five, six, seven, eight, or nine tens (and 0 ones).
Log in to view this lesson. If you do not have an account, subscribe now and begin your free 30 day trial.
 Grades:

1
 Subjects:

Math