Decomposition of Numbers
The following are true of decomposition of numbers:
Note: In Algebra II and subsequent coursework, the verb "decompose" refers to recognition of functions that were combined to make a new one.
Decomposing sets or numbers.
15 can be decomposed into numerous sums:
10 + 5
10 + 2 + 3
8 + 7
How might you decompose 23? 427? 58?
Five has a part that is four and a part that is one.
Joining sets or numbers together, such as three red counters and two blue counters, combine to make a set of five counters.
Combining numbers through addition reflects composing a number.
300 + 50 + 8 = 358
Click on the link below to further study examples of composition of numbers.
Composition of Numbers Activity
TEKS: K(2)(I), 1(2)(B), 1(3)(D), 2(2)(A), 3(2)(A), 3(3)(D), 4(3)(B)