What is the primary strategy discussed in the video for solving addition problems?

• Expanded form

• Standard algorithm

• Counting objects

• Number line

Tags

CCSS.2.NBT.B.7

What analogy is used to explain the concept of expanded form in the video?

• Rubber band

• Slinky

• Spring

• Elastic

Tags

CCSS.4.NBT.A.2

What is the value of the digit 2 in the number 28 as used in the video?

• 28

• 20

• 200

• 2

Tags

CCSS.4.NBT.A.1

What does the digit 4 represent in the number 49 in the context of expanded form?

• 40

• 4

• 49

• 400

Tags

CCSS.2.NBT.A.3

How much is 20 plus 40 according to the expanded form calculation?

• 2040

• 24

• 60

• 64

Tags

CCSS.5.NBT.B.7

What is the result of adding 8 ones and 9 ones together?

• 17

• 89

• 18

• 16

Tags

CCSS.1.OA.C.6

What strategy is suggested to help solve the addition of ones?

• Using fingers

• Memorization

• Double strategy

• Writing it down

Tags

CCSS.1.OA.A.1

What is the final result of 28 plus 49 using the expanded form?

• 77

• 67

• 87

• 76

Tags

CCSS.2.NBT.B.5

What is the sum of 60 and 17 in the expanded form example?

• 87

• 67

• 77

• 70

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

What is the next step after adding the tens and ones separately?

• Multiply the results

• Subtract the smaller number

• Add the results together

• Divide the tens by ones

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5