Adding with Partial Sums

Decompose to show the hundreds place of 917

Tags

CCSS.2.NBT.A.1B

Which number is missing when decomposing 843+712

800+40+3+____+10+2

Tags

CCSS.2.NBT.B.7

Kelly used partial sums to add.

_____ + _____ = 637

500+100=600

10+20=30

4+3=7

What two numbers did she add?

• 600 + 30

• 514 + 123

• 500+10

• 504+637

Tags

CCSS.2.NBT.B.7

Kelly used partial sums to add.

_____ + _____ = 945

200+600=800

70+60=130

6+9=15

What two numbers did she add?

• 15+945

• 945+130

• 276+669

• 945+200

Tags

CCSS.2.NBT.B.7

194+518 = 700+10+2

What is underlined answer in standard form?

Tags

CCSS.4.NBT.B.4

Decompose to show the tens place in 735

Tags

CCSS.1.NBT.B.2B

CCSS.1.NBT.B.2C

600+40+3 = _______

Tags

CCSS.2.NBT.A.3