Untitled Presentation

Open Ended

What models can we use to represent the standard algorithm?

Multiple Choice

Which equation correctly represents the total value of the tape diagram shown?

• w = 4,627 + 2,099

• w = 4,627 - 2,099

• w = 2,099 - 4,627

• w = 4,627 × 2,099

Open Ended

Compare the tape diagrams in images 0 and 1. What is the main similarity in how the total is represented?

Multiple Choice

Which of the following expressions represents the total value shown in the tape diagram in image 2?

• 6,273 + 429 + 3,005

• 6,273 × 429 × 3,005

• 6,273 - 429 + 3,005

• 6,273 + 429 - 3,005

Multiple Choice

What strategy is being used to estimate the sum of 469 + 228 in image 4?

• Rounding each number to the nearest hundred and then adding

• Adding the numbers exactly

• Multiplying the numbers

• Rounding each number to the nearest ten and then adding

Open Ended

Explain how rounding helps to estimate the sum in the equation 187 + 686 = c as shown in image 5.

Multiple Choice

What is the estimated sum of 288 + 436 using rounding?

• 700

• 740

• 800

• 600

Open Ended

Compare the estimation strategies used in slides 1 and 2. How does rounding each number to the nearest ten or hundred affect the estimated sum?

Multiple Select

Which of the following are correct estimated sums for the given problems?

• 300 + 440 = 740

• 180 + 600 = 780

• 300 + 60 = 360

• 50 + 800 = 900

Open Ended

Why is it helpful to add numbers in unit form when solving addition problems?

Open Ended

How does adding 1 ten to the sum of 3 tens and 5 tens change the result?

Multiple Choice

What is the sum of 3 tens and 5 tens in unit form?

• 6 tens

• 7 tens

• 8 tens

• 9 tens

Multiple Choice

What is the sum of 5 hundreds and 2 hundreds in unit form?

• 6 hundreds

• 7 hundreds

• 8 hundreds

• 9 hundreds

Multiple Select

Which of the following are correct sums for the given unit form additions?

• 3 tens + 9 tens = 12 tens

• 3 tens + 9 tens + 1 ten = 13 tens

• 5 hundreds + 7 hundreds = 13 hundreds

• 5 hundreds + 2 hundreds = 8 hundreds

Open Ended

Compare the total number of burgers served last May and last year. Which year had more burgers served, and by how much?

Multiple Choice

What is the sum of 8,443 and 2,129, and how is this sum broken down into smaller addition steps in the diagram?

• 10,572; 8,443 + 2,000 = 10,443, 10,443 + 100 = 10,543, 10,543 + 20 = 10,563, 10,563 + 9 = 10,572

• 10,572; 8,443 + 1,000 = 9,443, 9,443 + 1,129 = 10,572

• 10,572; 8,443 + 2,500 = 10,943, 10,943 - 371 = 10,572

• 10,572; 8,443 + 2,000 = 10,443, 10,443 + 129 = 10,572

Multiple Choice

Based on the information given, how many total burgers did the school cafeteria serve last year?

• 10,572

• 8,443

• 2,129

• 12,000

Open Ended

Explain how you would use a place value chart to add two numbers such as 8,443 and 2,129.

Multiple Choice

What is the main purpose of using a place value chart when adding large numbers?

• To organize digits by their place values and make addition easier

• To multiply numbers quickly

• To subtract numbers efficiently

• To compare numbers

Multiple Choice

Which of the following problems requires you to add three numbers together?

• 2,063 + 5,820 + 2,207

• 73,097 + 5,047

• 24,697 + 81,950

• 633,912 + 267,334

Open Ended

How does using a tape diagram help you understand addition with large numbers?

Multiple Choice

What is the value of a in the equation 1,398 + 524 = a?

• 1,922

• 1,812

• 1,932

• 1,824