Adding and Subtracting Within 1000

423+298

• 645

• 721

• 801

700-421

• 301

• 390

• 279

606-397

• 209

• 391

• 401

324+595

• 809

• 919

• 789

821-639

• 218

• 143

• 182

292+289

• 395

• 476

• 581

Jeannie got a pedometer to count her steps. The first hour, she walked 43 steps. The next hour, she walked 48 steps. a. How many steps did she walk in the first two hours? b. How many more steps did she walk in the second hour than in the first?

• 91 steps, 5 steps

• 87 steps, 8 steps

• 95 steps, 5 steps