N1C7TNp15

 

Answer to Problem15:

1.      600

2.     

3.      Answers will vary.  Sample answer: 

4.      Answers will vary.  Sample answer: 2.321 + 1.100

 

DEFINITIONS:

compose or decompose numbers: flexibly using or knowing numbers through creating and breaking numbers apart to form equivalent representations.  Grade 7 should include exponential notation.  For example, 36 can be thought of as 32 + 4, 20 + 16, 40 – 4, 12 X 3, 22 x 32 , etc.[1]  Added Note:  Decomposing numbers means rewriting a number as the sum, product or difference of other numbers.  Composing numbers means putting together numbers that are represented as a sum or product in order to obtain a single number.


 

[1] National Council of Teachers of Mathematics. (2000). Principles and standards for school mathematics (p. 149).