North Dakota Academic Content Standards
ND.2.NBT. Number and Operations in Base Ten
Understand place value.
2.NBT.1. Demonstrate understanding that the three digits of a three-digit number represent amounts of hundreds, tens, and ones, including:
2.NBT.1.a. 100 can be thought of as a bundle of ten tens called a “hundred”.
2.NBT.1.b. Multiples of 100 represent a number of hundreds, 0 tens, and 0 ones.
Use place value understanding and properties of operations to add and subtract.
2.NBT.7. Demonstrate understanding of place value within 1000 when adding and subtracting three-digit numbers. Use concrete models or drawings and strategies based on place value, properties of operation, and/or the relationship between addition and subtraction to add and subtract within 1000. Use a written method to explain the strategy.