Understanding Addition and Subtraction Concepts

The video tutorial explains how to use base ten blocks for performing addition and subtraction, focusing on the stability of the ones and tens places when adding or subtracting multiples of ten or one hundred. It demonstrates mental math techniques and practical applications using devices to visualize these operations, enhancing conceptual understanding of base ten arithmetic.

What did the narrator take to the park?

• A bird and a kite

• A book and a pen

• A dog and sidewalk chalk

• A cat and a ball

What is the result of adding one ten to one hundred eighty-one?

• One hundred seventy-one

• One hundred ninety-one

• Two hundred one

• One hundred eighty-one

When adding or subtracting by a multiple of ten, which place value remains unchanged?

• Thousands place

• Hundreds place

• Tens place

• Ones place

What is the sum when adding one hundred to one hundred eighty-one?

• One hundred eighty-one

• Two hundred eighty

• Two hundred eighty-one

• Two hundred eighty-two

What happens to the original number when you subtract one hundred from two hundred eighty-one?

• It becomes one hundred eighty

• It becomes one hundred eighty-one

• It becomes two hundred eighty

• It becomes two hundred eighty-two

What number is formed with base ten blocks on the cell phone screen initially?

• Four hundred twenty-four

• Three hundred thirty-four

• Two hundred eighty-one

• Three hundred twenty-four

What is the result of adding one ten to three hundred twenty-four?

• Three hundred forty-four

• Three hundred twenty-four

• Three hundred thirty-four

• Three hundred fourteen

When adding or subtracting by one hundred, which place values remain unchanged?

• Hundreds and thousands places

• Tens and hundreds places

• Ones and tens places

• Thousands and ones places