Adding and Subtracting Review

Mentally subtract 43 - 26.

• 20

• 17

• 27

• 14

Tags

CCSS.7.NS.A.1C

Mentally add 27 + 59.

• 70

• 76

• 80

• 86

Tags

CCSS.1.OA.C.6

CCSS.2.OA.B.2

Use ESTIMATION to solve 126 - 81 (NOT looking for an exact answer).

• 50

• 60

• 20

• 30

Use ESTIMATION to solve 124 + 59 (NOT looking for an exact answer).

• 140

• 160

• 180

• 200

Use Subtraction Algorithms to solve 808 - 257.

• 515

• 600

• 551

• 553

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Use Addition Algorithms to solve 667 + 309.

• 1,006

• 976

• 986

• 966

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Use Counting Up to solve 245 - 199.

• 46

• 56

• 66

• 36

Tags

CCSS.7.NS.A.1C

Use Split Strategy to solve 539 + 207.

• 806

• 766

• 756

• 746

Tags

CCSS.2.NBT.B.7

Use a strategy of your choice to solve 563 - 370.

• 383

• 393

• 403

• 373

Use a strategy of your choice to solve 1,502 + 4,961.

• 6,563

• 6,463

• 6,663

• 6,473

Tags

CCSS.4.NBT.B.4