Number & Operations in Base Ten
2.NBT.A.1
2nd Grade · Common Core Standards
Standard
Understand that the three digits of a three-digit number represent amounts of hundreds, tens, and ones; e.g., 706 equals 7 hundreds, 0 tens, and 6 ones. Understand the following as special cases:
Sub-standards
- 2.NBT.A.1.a — 100 can be thought of as a bundle of ten tens — called a "hundred."
- 2.NBT.A.1.b — The numbers 100, 200, 300, 400, 500, 600, 700, 800, 900 refer to one, two, three, four, five, six, seven, eight, or nine hundreds (and 0 tens and 0 ones).
Study materials
Study guide, practice problems, review, and practice test for this standard.
© Common Core State Standards Initiative. Used under CC BY 4.0. See thecorestandards.org for the official standards.