Double Digit Addition: Carry the 1 Strategy

The video tutorial introduces the 'carry the one' strategy for addition, emphasizing the importance of aligning numbers vertically. It explains how to determine when to carry over numbers in addition problems, using examples like 45 plus 49 and 56 plus 24. The tutorial also provides practice problems to reinforce the concept, ensuring learners understand when and how to carry numbers in addition.

What is the first step in the carry the one strategy for addition?

• Add the numbers horizontally

• Line up the numbers vertically

• Subtract the smaller number from the larger number

• Multiply the numbers

When adding 6 and 3 in the ones column, what is the result?

• 8

• 9

• 7

• 10

In the example of adding 45 and 49, what do you do with the number 1 from 14?

• Put it in the tens column

• Put it in the ones column

• Subtract it from the total

• Ignore it

What is the final answer when adding 45 and 49 using the carry the one strategy?

• 94

• 84

• 114

• 104

When adding 56 and 24, what do you do with the number 1 from 10?

• Subtract it from the total

• Put it in the ones column

• Ignore it

• Put it in the tens column

What is the final answer when adding 56 and 24 using the carry the one strategy?

• 90

• 100

• 80

• 70

When adding 19 and 52, what is the result of adding 9 and 2 in the ones column?

• 12

• 11

• 10

• 13

What is the final answer when adding 19 and 52 using the carry the one strategy?

• 61

• 91

• 71

• 81

When adding 67 and 22, do you need to carry the one?

• Yes

• No

• Only if the sum is more than 20

• Sometimes

What is the final answer when adding 63 and 27 using the carry the one strategy?

• 100

• 80

• 90

• 94