Double Digit Addition with Regrouping

The video tutorial covers the concept of addition with regrouping using fun examples involving ants and hens. It emphasizes the importance of precision in addition and introduces the method of checking addition work through subtraction. The tutorial is designed to make learning math engaging and to reinforce the concept of regrouping when dealing with double-digit numbers.

What is the sum of 37 and 43 when regrouping is applied?

• 100

• 80

• 70

• 90

In the hens example, what is the result of adding 29 and 15?

• 39

• 49

• 44

• 34

What is the first step in checking your addition using subtraction?

• Subtract one addend from the sum

• Divide the sum by one addend

• Add the numbers again

• Multiply the numbers

If you subtract one addend from the sum and get the other addend, what does it mean?

• The addition is correct

• The addition is incorrect

• The subtraction is incorrect

• The numbers are too large

What is the inverse operation of addition used for checking errors?

• Multiplication

• Division

• Subtraction

• Addition