Addition 3 Digit Numbers

How would I use expanded form to solve 326+123?

• 300+2+6

  +100+2+3

  =400+4+9=449

• 300+20+6

  +100+20+3

  =400+40+9=449

• 3+2+6

  +1+2+3

  =4+4+9=449

• 449

Tags

CCSS.2.NBT.B.7

How would you solve 401+411 with expanded form?

• 401

  +411

  =812

• 400+1

  +400+1+1

  =800+1+1=812

• 400+0+1

  +400+1+1

  =8+1+1=812

• 400+0+1

  +400+10+1

  =800+10+1=812

Tags

CCSS.4.NBT.B.4

Write the number in number form. 

• 258
• 377
• 358
• 659

Tags

CCSS.2.NBT.A.3

300+60+8=

• 386
• 123
• 308
• 368

Tags

CCSS.2.NBT.A.3

901 in expanded form

• 900+0+1
• 90+0
• 9+1
• 4+5

Tags

CCSS.2.NBT.A.3

How many hundreds in 980?

• 9
• 8
• 0
• 90

Tags

CCSS.2.NBT.A.1B

What is the standard form for 3 hundreds 4 tens and 3 ones?

• 3431
• 343
• 3430
• 34

Tags

CCSS.2.NBT.A.3

Turn 537 into Expanded form

• 50 + 30 + 7
• 5 + 3 + 7
• 500 +30 + 7
• 7 +530 + 30

Tags

CCSS.2.NBT.A.3

  604
 + 207 = 

• 705
• 811
• 712
• 615

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

509
+ 372 =

• 991
• 756
• 881
• 893

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2