Adding and Subtracting Within 1,000

Find the sum of 308 and 92.

Answer explanation

Remember, when adding, Mathematicians match place values and bundle groups of ten to the next highest place value when needed.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Find the difference between 445 and 168.

Answer explanation

Remember, when subtracting, mathematicians may need to unbundle a larger unit to get more of a smaller unit.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

435 + 364

• 799

• 71

• 800

• 791

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

658 - 432

• 1,090

• 226

• 216

• 224

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

728 + 165

• 641

• 892

• 563

• 893

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

843 - 561

• 1,404

• 322

• 282

• 324

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

708 - 329

• 421

• 379

• 1,037

• 389

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

402 + 368

• 770

• 760

• 670

• 660

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

178 + 479

• 658

• 650

• 675

• 657

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

749 - 298

• 551

• 1, 047

• 451

• 461

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2