Understanding Addition and Place Value

This video tutorial teaches students how to use place value to add two-digit numbers. It covers modeling tens and ones, solving example problems, and introduces the concept of carrying over or regrouping. The lesson includes practical examples to reinforce understanding and prepares students for more complex addition problems in second grade.

What is the first step in using place value to add two-digit numbers?

• Add the tens

• Multiply the tens

• Add the ones

• Subtract the ones

In the flower example, how many tens are there in 40 red flowers?

• 4 tens

• 5 tens

• 3 tens

• 2 tens

What is the sum of the ones when adding 27 and 14?

• 12 ones

• 11 ones

• 10 ones

• 9 ones

When adding 43 and 39, what is the total number of ones before regrouping?

• 10 ones

• 13 ones

• 11 ones

• 12 ones

What is the sum of 54 and 26?

• 70

• 80

• 90

• 100

How many tens are there in the sum of 26 and 62?

• 9 tens

• 7 tens

• 6 tens

• 8 tens

In the gem problem, how many ones are there after adding 39 and 22?

• 11 ones

• 10 ones

• 9 ones

• 12 ones

What is the final sum of 68 and 14?

• 102

• 92

• 82

• 72

What concept will be introduced in the next lesson?

• Subtraction

• Multiplication

• Division

• Carrying over