Subtraction-4th

Grade-level Expectations for 4th Grade   - Recognize equivalent representations for the same number and generate them by decomposing and composing numbers including expanded notation - Apply and describe the strategy used to compute up to 4-digit addition or subtraction problems

Example Strategy:

728 - 486 = 728 - 400 = 328 328 - 80 = 248 248 - 6 = 242

Example Strategy: 1,328 - 759 = 759 + 41 = 800 800 + 200 = 1,000 1,000 + 328 = 1,328 41 + 200 + 328 = 569