# Composer to 4, then 5

Knows number combinations to totals of 4 and then 5. Quickly names parts of any whole or the whole given the parts.

Note: The goal for this level goes beyond simply memorizing math facts. The goal is knowing the “breakaparts,” which means the paired values that compose a target number. For example, the breakaparts for the target 4 are: 0 and 4, 1 and 3, 2 and 2. Knowing breakaparts means knowing the component parts in any order. In other words, knowing that 2 and 3 or 3 and 2 are breakaparts for the target 5. Often children’s earliest learned fluent breakapart combinations involve 1. For example, 1 and 1 for the target 2; 2 and 1 for the target 3, and so on. Or they combine 0 to numbers from 1 to 5+. For example, 2 and 0 for the target 2; 5 and 0 for the target 5. (When 0 is the second addend, counting on is easier.) Later, children learn combinations such as 2 and 2 for the target 4, and 3 + 2 or 2 + 3 for the target 5.

## Other Examples:

• Shown four, then one is secretly hidden, and then is shown the three remaining, quickly says “one" is hidden.