1) James collected 281 sea shells on Monday. On Tuesday, he found 211. How many did he collect altogether. 2) Mary made 350 valentines. She passed some out at school. She has 219 valentines left. How many did she pass out? 3) The children won 314 tickets at the arcade. The adults won 425 tickets. How tickets did everyone win? 4) Haley reads 325 pages each week. She read some pages yesterday. She has 127 pages left to read this week. How many pages did she read yesterday? 5) 780 - 421= 6) 334 + 403=

Subtracting and Adding Three-Digit Numbers

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