Subtraction
789-462=?
327
123 +452 =
575
Anna read for 537 minutes last week. She read for 344 minutes this week. How many fewer minutes did she read this week?
193
139 + 324 =
Once!
563-129=?
434
765 + 121 =
886
Ms. Burke has a collection of 678 stamps. Ms. Burke has 256 more stamps than her sister Sarah. How many stamps does Sarah have?
(Hint: Ms. Burke has more than Sarah!!)
422
How many times would you need to regroup in this equation?
567-129 =
872 - 425 =
447
374 + 527 =
901
Mrs. Haithcock has 185 fiction books and 207 nonfiction books. She wants to find how many books she has altogether. What is a reasonable answer for how many book she has all together?
Hint: Make pretty numbers!
Any pretty number between 390-610
Ms. Burke: 346 -297 = 49
Ms. Watkins: 346 - 297 = 159
Ms. Burke is correct.
Ms. Watkins is incorrect because she did not ungroup the hundreds into tens. The tens column in incorrect which impacted the ones.
834 - 756 =
78
578 + 198 =
776
Dominic has 398 baseball cards and 245 football cards. How many sports cards does Dominic have all together?
643
How many times would you need to regroup in this equation?
567 + 355 =
921 - 632 =
289
299 + 487=
786
Hortons Creek Elementary School served 704 lunches on Monday. 355 lunches were served to boys. How many girls were served lunch by the cafeteria?
349
How many times would you have to ungroup in the following equation?
734 - 289 =
Twice!