The video tutorial explains how to manipulate numbers by adding or subtracting tens. It first demonstrates adding 10 to the number 35, resulting in 45, by emphasizing the concept of place value and the role of tens. Then, it illustrates subtracting 10 from the number 42, resulting in 32, again focusing on the place value system. The tutorial aims to help students understand how numbers change when tens are added or removed, reinforcing the concept of place value in arithmetic operations.

What is the result when you add 10 to 35?

• 45

• 40

• 25

• 50

Tags

CCSS.1.NBT.C.5

On a place value chart, adding one more 10 to 35 changes which column?

• Thousands

• Hundreds

• Ones

• Tens

Tags

CCSS.1.NBT.B.2B

CCSS.1.NBT.B.2C

What does the number 42 consist of in terms of place value?

• 4 hundreds and 2 thousands

• 2 tens and 4 hundreds

• 4 ones and 2 tens

• 4 tens and 2 ones

Tags

CCSS.1.NBT.B.2B

CCSS.1.NBT.B.2C

If you have 42 and you subtract 10, what is the new number?

• 22

• 32

• 52

• 30

Tags

CCSS.1.NBT.C.5

When subtracting 10 from 42, which place value column is affected?

• Thousands

• Hundreds

• Ones

• Tens

Tags

CCSS.1.NBT.C.5