How many ones do I need to show 23?

• 2 ones equals 23.

• 3 ones equals 23.

• 23 ones equals 23.

• 13 ones equals 23.

Tags

CCSS.1.NBT.B.2B

CCSS.1.NBT.B.2C

Mrs. Bonner told her students to show 13. Look at Ronnie and Lena's model.

Who is correct?

• Only Ronnie is correct.

• Only Lena is correct.

• Lena and Ronnie are both wrong.

• Lena and Ronnie are both correct.

Tags

CCSS.1.NBT.B.2B

CCSS.1.NBT.B.2C

How many tens do I need to show 200?

• 2 tens

• 20 tens

• 18 tens

• 2 million tens

Tags

CCSS.2.NBT.A.1B

How many tens do I need to show 400?

• 4 tens

• 14 tens

• 40 tens

• 4000 tens

Tags

CCSS.2.NBT.A.1B

Which two models show 300?

• 
• 
• 
• 

Tags

CCSS.2.NBT.A.1B

Mary showed 18 as 1 ten and 8 ones. Dan showed 18 as 18 ones.

Are they both correct?

• Yes, they are both correct.

• No, Mary is wrong.

• No, Dan is wrong.

• No, they are both wrong.

Tags

CCSS.1.NBT.B.2B

CCSS.1.NBT.B.2C

Bob showed 46 by drawing 4 tens and 6 ones. Dan showed 46 by drawing 40 ones.

Are they both correct?

• Yes, they are both correct.

• No, Bob is wrong. 46 is not 4 tens and 6 ones.

• No, Dan is wrong. 40 ones does not equal 46.

• No, they are both wrong.

Tags

CCSS.1.NBT.B.2B

CCSS.1.NBT.B.2C

John showed 241 as 2 hundreds, 4 tens and 1 ones. Max wants to show 241 ONLY using tens and ones. How many tens and ones does he need to show a total of 241?

• 2 tens and 4 ones

• 24 tens and 1 one.

• 20 tens

• It's not possible at all.

Tags

CCSS.2.NBT.A.1B

Choose the 2 ways to show: 315

• 3 hundreds, 1 ten, 5 ones

• 3+1+5

• 31 tens, 5 ones

• 30 tens and 1 one

Tags

CCSS.2.NBT.A.3

What number is shown here?

Tags

CCSS.2.NBT.A.3