# 1. Add Multiples of 100

Practice adding 2 multiples of 100, using concept of place value. The key idea is to visualize this as adding bundles of 100. For example 200 + 300 = 500 can be thought of as 2 hundreds + 3 hundreds = 5 hundreds. **Adding Multiples of 100 Worksheet** contains problems on adding hundreds using models (base 10 blocks) followed by some direct addition.

### Common Core Alignment

**2.NBT.7**Add and subtract within 1000, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method. Understand that in adding or subtracting three-digit numbers, one adds or subtracts hundreds and hundreds, tens and tens, ones and ones; and sometimes it is necessary to compose or decompose tens or hundreds.