Adding 10 to Two-Digit Numbers Simplified

This video tutorial teaches an easy method for addition by focusing on the concept of tens and ones. It starts with a basic problem, 27 plus 10, and explains how to solve it by understanding place values. The tutorial demonstrates that adding 10 to a number increases the tens digit by one while keeping the ones digit the same. It provides examples like 54 plus 10 and 89 plus 10 to reinforce the concept. The video also covers special cases where the initial number has no tens, such as 6 plus 10, showing how to handle these situations. By the end, viewers should understand how to efficiently add numbers using place value knowledge.

What is the result of adding 10 to 27 using the counting method?

• 37

• 27

• 40

• 17

Tags

CCSS.1.NBT.C.4

CCSS.2.MD.B.6

In the number 27, what does the digit 2 represent?

• 2 ones

• 20

• 2 hundreds

• 2 tens

Tags

CCSS.1.NBT.B.2B

CCSS.1.NBT.B.2C

What is the result of 27 plus 10 using place value?

• 17

• 34

• 270

• 37

Tags

CCSS.2.NBT.B.6

When you add 10 to a number, which digit increases by one?

• Thousands place

• Tens place

• Hundreds place

• Units place

Tags

CCSS.1.NBT.C.5

What is 54 plus 10?

• 64

• 44

• 540

• 60

Tags

CCSS.1.NBT.C.4

CCSS.2.MD.B.6

How does the number 89 change when 10 is added?

• 99

• 79

• 100

• 890

Tags

CCSS.1.NBT.C.5

What is the sum of 6 and 10?

• 610

• 6

• 16

• 60

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

What does 8 plus 10 equal?

• 18

• 108

• 80

• 8

Tags

CCSS.1.OA.C.6

CCSS.2.OA.B.2

What is the result of adding 10 to 4?

• 44

• 104

• 40

• 14

Tags

CCSS.1.OA.A.1

If you add 10 to a number with no tens, what happens?

• The number doubles

• The number becomes a multiple of ten

• The number decreases by ten

• The number remains the same

Tags

CCSS.1.NBT.C.5